How to Measure up a Finger Guard for Kids

It’s really easy to measure up for a finger guards for kids – we even offer five different sizes. Each Thumbsie® finger guard is handmade and designed to help stop finger sucking.

Our finger guards fit over two fingers either the middle and the index finger or the middle and the ring finger. Each Thumbsie® is handmade, so it’s important to measure carefully to ensure the best fit. Please use the diagram as a guide—if you’re unsure about sizing, feel free to contact us. When your finger guard(s) arrive, try them on before washing. If the fit isn’t right—too tight, too loose, or simply uncomfortable—please don’t wear it and get in touch with us instead.

Please use the diagram below and measure from the middle finger to the bend in the wrist as shown. Please ensure that you take care when measuring to get a good fit.

How to Measure up a Finger Guard for Kids

Our finger guards are available in five different sizes. When ordering your fabric pattern please select one of the following:

Size	Inches	Centimetres
Extra Small	3.5 - 4.2	9.0 - 10.6
Small	4.2 - 4.7	10.6 - 11.9
Medium	4.7 - 5.1	11.9 - 13.1
Large	5.1 - 5.7	13.1 - 14.5
Extra Large	5.75 - 6.3	14.6 - 16

Get your child to choose from our fun selection of fabrics. We recommend buying three for each hand they suck.

Buy Finger Guards

If you need the finger guard to be a little bigger then please order a bespoke finger guard.

All finger guards are secured by Velcro® around the wrist which helps make the child feel more independent but also means that no matter the size of their wrist, they should feel comfortable as they can be adjusted. If when your finger guard(s) arrives it is not comfortable, too big or too tight please do not wear it.

When measuring for a Thumbsie® finger guard, please bear in mind that the product will fit either hand, and any of the two middle fingers. We recommend your child wears the guard all the time, both day and night. For this reason, we suggest that you have three for each hand that they suck. We highly recommend our Stop Finger Sucking Bundles which will save money.

Mermaid Thumbsie® Finger Guard

£11.75

Mermaid Thumbsie® Finger Guard

£11.75

Google Rating

4.8

Based on 443 reviews

Thumbsieu00ae thumb glove

4.8

Sophie Pehl

09:39 13 Feb 26

After trying lots of different ways to try and stop my daughter’s thumb sucking habit, she suddenly stopped after using her Thumbsie. She has been a thumb sucker since a baby and I thought we would never get her to stop! I would really recommend Thumbsie for anyone wanting their little one to stop sucking their thumbs/fingers.

Jodie Glover

21:50 13 Nov 25

Really easy to use website and great customer service when I had a query. The thumb guard is great quality, delivered quickly and by some miracle is staying put on my 18 month old's hand and keeping it out of her mouth! Highly recommend.

Andrea Gerber

12:11 30 Jun 25

Ich habe den Daumenhandschuh für meinen 5-Jährigen Sohn gekauft. Er hat sein Muster selbst ausgesucht. Er hat sich riesig über das Paket im Briefkasten gefreut und sogleich angezogen. Nun nach 2 Tagen bin ich wirklich überrascht. Er trägt den Handschuh noch immer selbstständig und er nimmt den Daumen nicht mehr in den Mund. Beim Schlafen, TV schauen und Autofahre der Daumen bleibt draussen. Ich bin begeistert! Der Handschuh ist sehr schön genäht und der Stoff sehr angenehm. Ich kann diesen Daumenhandschuh sehr empfehlen. Liebe Grüsse aus der Schweiz, Andrea

Amy Walton

19:15 20 May 25

Thumbsie has been nothing short of a miracle for my 4 year old daughter! She has been sucking her thumb for years. She was never able to settle to sleep without sucking her thumb and it also gave her a lot of comfort throughout the day. After 4 weeks of wearing a thumbsie day and night she has completely broken the habit! Thank you so much for creating this brilliant product!

Tamara Rhodes

20:28 19 May 25

I was at my wits end with my son (9) and trying to break his thumb sucking habit. I felt we tried a lot, from nail biting solution, to chew toys that go around your neck, reward charts, this was my last resort and we're 4 weeks in and can't believe it! He has worn it religiously ever since it came, he picked the design and its helped so much. His teeth are also looking ten times better. Thank you to the moon and back!!!

Emma Burton

21:12 17 Apr 25

Thumbsie has been a great success for my little girl! She has sucked her thumb since 3 months old and it was beginning to shape her teeth and gave her a sore thumb. We tried the liquid dip and that just resulted with lots of tears and tantrums. However when we introduced her to thumbsie she got on board straight away. She is happy and proud to wear it. Three months later and we have not seen her suck her thumb once in the last few weeks! Success at last! We would strongly recommend this product to other parents.

Kelly Evans

21:40 30 Mar 25

Fantastic product! My (almost) 7 year old had sucked his fingers since he was a baby. I ordered the pack with book, reward chart and finger guards. He really embraced wanting to stop his habit and after 5 weeks, he’s no longer sucking his fingers at all.

Shelley George

06:45 13 Mar 25

I bought these for my 4 year old who has been a self-soothing thumb-sucker since she was a baby. Despite understanding that she needed to stop, it was clearly a habit she was finding hard to break, and as she sucked her thumb when she was tired, it was impossible to 'police' at bedtime etc. This winter her thumbs were getting really sore from the sucking, and I noticed her front teeth had also started moving.That's when I found Thumbsies. I ran the idea by her to help 'protect her thumbs', and she was keen. I showed her all of the patterns and she picked the dinosaur pattern excitedly and we measured her hands. When they arrived, she was proud to wear them and loved the accompanying book and star chart.The first 3-days to a week were the hardest at night time as she didn't think she could sleep without sucking her thumb, but with encouragement and a bit of extra soothing, plus the obvious barrier presented, she did fall asleep, and thus learnt that she could.We used half of the star chart to reward wearing the thumbsies, until we felt confident that she was not seeking her thumb anymore, and then the other half of the Star Chart to then wean her off of the thumbsies, and remind her that she didn't need her thumbs to fall asleep.We stuck with it and she hasn't looked back. It's been amazing, and her school were totally fine with her wearing them. I sent her Thumbsies book in with her book bag for reference so they could encourage her too as she did use to suck her thumb in class. They've been a winner!Thanks for a brilliant product that has genuinely helped my child break a habit of a lifetime.

Adele Cochran

20:45 23 Feb 25

The Thumbsie really worked for my 6 year old daughter. It took about a month for her to stop sucking her thumb. The reward chart helped and she identified a lot with Ted in the book.

Vikesh Patel

22:47 13 Jan 25

Thumsie solved our 3.5y old daughters thumbsucking habit in under 3 weeks.

Anna

09:58 08 Nov 24

I can’t believe how quickly and painlessly the thumbsies worked. We used a sticker chart for every day she kept them on and in under a week she was able to have the thumbsies off during the day and has stopped thumb sucking completely. No tears at all. Amazingly effective.

rosemarie clifford

21:21 05 Nov 24

My son is autistic and had been sucking his thumb for 10 years, but since having the thumbsies, he hasn't sucked his thumb in 5 months. I would highly recommend

Sarah Phillips

10:27 13 Oct 24

My daughter has sucked her index and middle fingers since she was born and I had no idea how to break the habit. We purchased both a Thumbsie and the book, and began reading the story most days. Before long my daughter was asking me if she could wear her Thumbsie. Even now she has given up she still occasionally asks to wear it. Thank you Thumbsie!

Kiran Basra

08:07 10 Oct 24

Thumbsie has worked a treat since the day my 6 year old daughter used it. My daughter loved to pick her own design too. No more thumb-sucking. Thank you so much!

rissy Hamadou

09:33 08 Sep 24

Ma fille de 9ans a arrêté de sucer le doigt grâce au thumbsie, c’est le dentiste qui nous en a parlé cet été. Elle a choisit elle-même ses motifs et après 4 jours, elle arrivait à s’endormir sans trop de difficulté sans sucer son pouce. Ça a marché pour nous plus qu’on n’attendait. Elle est ravie

Rebecca Louise Sharp

13:14 07 May 24

We have been blown away by how smooth Thumbsie has made the transition to help our 5 year old daughter stop sucking her thumb. The thumb guard was beautifully made and we really appreciated the ongoing support from the team via Instagram. Would recommend to anyone wanting to take the leap in stopping thumb sucking. Thank you so much!

Jemima E

19:31 20 Mar 24

I have been blown away by my son using his Thumbsie "finger sock" whilst he sleeps. He hasn't sucked his finger since the day he started wearing it and we are now nearly a month later. It's incredible the progress he has made at only 2.5 years old. A super simple, yet so effective, idea.

Chloe Williams

12:17 19 Mar 24

Really well made, we have 2 of them. My sone likes them as they are in camouflage patterns. They definitely help restrict thumb sucking.

Joanna Storey

20:05 18 Mar 24

My dentist recommended trying thumbsies for my son,aged 4,earlier this year. Beautifially made,fast delivery and they work! I am so impressed and relieved.I can't recommend these highly enough.

Emily Jackson

20:46 17 Mar 24

We first tried thumbsies a when my daughter was 3, it quickly became apparent that she wasn't ready. Having now turned 5 my daughter said she wanted to stop, so we gave it another go. This time it was smooth sailing and I think we could probably have stopped the thumbsies within a few days. However we kept them on during the week for about 4 weeks and a night for a few weeks longer until she asked to stop. She's absolutely smashed the finger sucking and as an added bonus has also stopped biting her nails at the same time.

Jennifer Karamath

20:17 17 Mar 24

Absolutely beautifully made and crafted. Initiates my daughter to take control of her habit

antonia mccormack

21:21 15 Mar 24

In less than 6 weeks of wearing a thumbsie both my 8yr old & 3 yr old have stopped sucking their thumbs whilst falling asleep. Both boys enjoyed picking the material pattern & proud of themselves! Highly recommended

Charlotte Tulloch

20:43 15 Mar 24

We have bought many thumbsie’s over the last year or so (having lost one or two!) to help our daughter stop sucking her thumb. It has been an absolute game-changer and the has been the only way she has been able to stop! Really great product and worth every penny!

Zoe Smith

12:27 15 Mar 24

My 13 year old daughter is using these. She has decided to try and stop sucking her thumb due to an orthodontist telling her she will be unable to have braces and she would benefit from these. She sucks her thumb for sensory reasons and when anxious and sucks for many hours a day. She has found them okay to wear, and this a really big thing for her, but just removes them to suck her thumb or doesn't put one on. We may buy more to be able to have more in handy places to put on, and would recommend them.

Sally Hunter

11:19 15 Mar 24

My daughter really didn't want to wear a thumb guard but being able to choose a design she liked, something that Thumbsie offers, helped her get around to the idea. The products are very well made out of soft material. They wash well. They are easy to take on and off but have enough velcro to make it difficult for my daughter to take them off in her sleep. The velcro helps them fit well so they don't just slip off like other elasticated ones do. They came pretty quick too. I would definitely recommend them and would buy again if I needed to.

Sarah Odds

11:04 15 Mar 24

We used for our eldest child and they worked a treat. Our third has decided she would like to try giving up now and the designs are fab. They really do give them the confidence to break the habit and feel cool with the amazing print

Katherine Ashdown

11:02 15 Mar 24

Excellent service. We ordered a cat print thumbsie but sadly the fabric had gone out of stock. They got in touch to let me know and suggested a different cat fabric they did have (my little girl preferred!) She has used it for around 4-6 weeks now and it has totally cured her day time thumb sucking so no longer wears it. We have not yet tackled night time yet but planning to soon!

Alison Marrs

13:52 02 Jan 24

My 6 year old daughter has sucked her thumb since she was a baby and I was beginning to think we would just have to accept this. Any other way we’d tried to get her to stop had failed. However she kept asking us to help her and I came across Thumbsie. The many designs helped as she loves cheetah print fabric and she took to wearing it straight away at night. After a couple of months of wearing it she asked to take it off and she now no longer sucks her thumb. I am proud of her for giving this a go and also over the moon this has worked. Thanks Thumbsie. I would recommend this - even if you feel doubtful.

Kate Ballard

08:32 13 Dec 23

Eva has sucked her thumb since she was born, at night, when tired, when anxious ie a lot! I never thought this would work but it's been over 4 weeks now and she's not sucked her thumb once! She enjoyed picking the fabric and Jo was really helpful with this. The only problem I have now is that she won't take the thumbsie off! Thanks Jo we're all so happy it's working and proud of Eva.

Marie Wallner

20:50 10 Dec 23

I was sceptical about how these would work as my daughter has sucked her thumb since she was a tiny baby. She showed absolutely no signs of stopping, and she’s now 5, and would need to suck her thumb to get to sleep and whenever she was in the car or watching TV. After just a week of wearing the thumbsie overnight she has totally stopped!! At all times of the day. Honestly so impressed!

Amadeus Stevenson

07:51 05 Dec 23

Thumbsies are really well made, come in an attractive range of prints, and most importantly, they work! We've battled a number of options before, but letting our son choose his thumbsies has really helped him adopt them.

Kitty Pennybacker

13:53 04 Dec 23

They work well

Fiona Winters

22:32 02 Dec 23

After 8 years of thumb sucking and many failed attempts to give up, my daughter finally stopped sucking her thumb after wearing her thumbsie for just 3-4 weeks in the evenings and at night time. Being able to pick her own fabric design was a real plus. A huge thank you!

Heidi Breitsprecher

20:16 02 Dec 23

Received quickly and my daughter loves it, it has made a real difference to her thumb sucking

Holly Scragg

19:22 02 Dec 23

Have used these for my son and daughter. Very successful for both and the different patterns meant they didn’t mind wearing them. Highly recommend

Jenny

18:17 02 Dec 23

We love the thumbsies, they're really helping our little one to remember not to put that thumb in her mouth. She's never minded putting them on, thanks to all the fun prints and the special story that came with them. Thanks very much for a simpler solution!

Louise Bates

18:14 02 Dec 23

Has helped all 3 of my girls to stop sucking their thumbs. Lovely designs for them to choose from.

Harry Thuillier

11:09 19 Sep 23

My daughter sucked her thumb night and day. Having seen pictures of what it can do to your mouth as it grows, and being able to choose her favourite designs for a thumbsie (panda, fairy and love hearts), once the thumbsie was on she stopped sucking her thumb immediately, even at night. The reward chart enabled her to get something special after a week of not sucking, and the book enabled her to be proud of wearing it. The thumbsie was enough to remind her to not put it in her mouth without resorting to nasty chemicals. She is much more communicative now, and after wearing her thumbsies for 24 hours a day for a couple of weeks and then only at nights for a month or two, she now doesn't need to wear it at all and has completely stopped. Total success - thanks to thumbsie. We have recommended to several other parents.

richard gibb

09:40 03 Jul 23

Excellent product, amazed how easy it made our journey. Our 4 year old stopped sucking her thumb within 2-3 weeks and loved wearing her Thumbsie and the cool prints. Would 100% recommend!

Claire Thompson

20:50 02 Jul 23

My 6 year old daughter sucked two fingers from about three weeks old. Her dentist told her she must stop! We ordered a set of three Thumsies (for fingers) in March and initially used them in the day time at times when the fingers would go in. They were lovely quality and the pretty fabric meant my daughter liked to choose which one to put on. After a couple of weeks using the Thumsies and the star chart she broke the day time habit. Night time was definitely harder and there were a few nights when the Thumsie had to come off. It got easier and after 6 weeks or so the Thumsie was really just there as a reminder. It’s now July and we are Thumsie and finger-sucking free! A great result!

Jennifer Lake

19:08 13 Jun 23

I'm still shocked at how well this product worked for our 3 year old daughter, even after reading all the great reviews myself. I'll be honest, when they arrived I thought 'how will this work, she'll just undo the velcro?' But she didnt; she was excited about her thumbsie's and there was no fuss at not having her thumb at bedtime (shocker!). The reward chart helped too. It took about 2 weeks until she didnt need to wear them during the day. We've now removed them at bedtime also and her thumb does not appear to be creeping back into her mouth. Thank you Thumbsie!

Rob Hill

07:53 28 May 23

Amazing. My 4 year old son didn’t want to stop sucking his thumb and we tried everything before trying a Thumbsie. He engaged with his thumbsie straight away and was really proud of it, showing everyone and telling them why he had it. He hasn’t sucked his thumb now for over a month.

S S

20:22 24 May 23

Absolutely fabulous! We purchased a thumbsie as a last ditch attempt to curve our son's thumb sucking after 8 years of trying everything else on the market with no luck...they are so soft, gorgeously designed and after only 3 weeks, completely stopped the thumb sucking! We just wish we'd purchased sooner - literally couldn't recommend any higher! Thank you so much team thumbsie!

Avi Lambez

21:29 23 May 23

Thank you so much! We tried everything. nothings worked. My 5 years old girl really really attached to her thumbs. Thanks to you, she is 6 months suck-free. we are so grateful!!!

Emma Barret

13:36 22 May 23

I decided to try Thumbsie to help my 5 year old stop sucking her thumb, following a recommendation from our dentist. She had sucked her thumb day and night from 3 months old. My daughter loved the Thumbsies, and enjoyed the attention they got at school. After just a few days of wearing them day and night I could see an improvement, and after 3 weeks we were amazed to find she had completely stopped sucking her thumb! It's now been several months and she has not sucked her thumb at all. This is an amazing and gentle product that really works, I can't recommend it highly enough. The service was also excellent.

Teach To Sleep Sarah Patel

06:10 22 May 23

My son loves his thumbies . Made a huge difference to him learning how to fall asleep without sucking his thumb

Joanne Thompson

00:31 20 May 23

My 4 year old son began wearing Thumbsies 2 months ago, after 6 weeks we moved to just wearing on a night, now we have even been able to stop that. He now does not even try to put his thumb near! Could not recommend this product enough.

See all reviews

Our fun finger sucking glove for toddlers!

This glove features a magical Mermaid design is a gentle and effective way to help little ones stop finger sucking. Specially designed for comfort and everyday wear, it supports toddlers in breaking the habit in a fun and positive way.

Loved by children for its playful mermaid print, this finger glove turns finger-sucking prevention into a positive experience. Parents and dentists recommend it as a supportive aid for healthy oral development, and it’s proudly backed by the Oral Health Foundation, giving parents extra peace of mind.

Soft, breathable, easy to clean, and available in five sizes, this mermaid finger glove is ideal for day or night use—helping toddlers kick the habit while feeling confident and comfortable.

A trusted, dentist-recommended solution that makes breaking the finger-sucking habit feel magical.

Designed and printed by Thumbsie® in the UK.

Size

Clear

Quantity

What size do I need?

Fits Like a Glove

The finger guard is worn like a glove, it fits over the middle two fingers (either middle and ring or middle and index) and is secured with Velcro around the wrist, so easily adjustable. The guard will fit either hand and will not limit the child’s ability to play or use their hands.

Material

Outside: Various colour mermaids on an aqua blue background. Cotton Poplin, Oeko-Tex certified.

Inside: Thumbsie® branded cotton fine warp satin, Oeko-Tex certified.

We suggest washing by hand or in the washing machine at a low temperature.

Approved by professionals

We are delighted that Thumbsie® has been ‘Approved’ through the Oral Health Foundation Accreditation Scheme since May 2020 and that they recognise Thumbsie® as a useful aid in oral health.

Sizes

These Thumbsies® finger guards are available in extra small, small, medium, large and extra large. Please use our size guide to get the best fit. Please note that we have recently changed our sizing so if you are a returning customer please make sure you re-measure your child’s hand.