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💎 Invisible comfort that keeps your style locked in place.
The Feramox Invisible Ring Size Adjuster is a discreet, high-quality TPU ring sizer that reduces loose rings by 0.5 to 1 size. With eight assorted sizes in one pack, it fits ring widths from 1mm to 10mm, suitable for both men’s and women’s rings. Made from soft, non-toxic, and odorless material, it offers a comfortable, irritation-free fit that’s easy to apply and virtually invisible, ensuring your valuable rings stay secure without compromising style.











| ASIN | B07C15P2F7 |
| Best Sellers Rank | 3,936 in Fashion ( See Top 100 in Fashion ) 19 in Ring Sizers |
| Brand | Feramox |
| Colour | 8 Easy-Clips |
| Customer Reviews | 4.0 4.0 out of 5 stars (40,989) |
| Date First Available | 15 April 2018 |
| Item Weight | 9.07 g |
| Material | Silicone |
| Model Number | FM01-JA-5 |
| Product Dimensions | 11.91 x 8.89 x 0.51 cm; 9.07 g |
F**B
Works well
Was very easy to add the plastic band to my ring, now it fits securely. Needs to be cleaned as gets a bit grimey but easy to do as its plastic
W**Y
Great product
Saved me from having to get a smaller ring size. I have arthritis and fingers can swell or shrink depending on temperature so these are ideal. Easy to put on and take off, doesn’t scratch the surface of the ring, and is comfortable to wear and stops the ring from dropping off or spinning. Invisible annd can’t be seen at all. Only thing I’d want is to be able to get a pack of the one size I needed as I didn’t need the others but you never know when they’ll come in handy. Great price too.
J**0
Husband was dubious but uses this all the time now. Very pleased.
Bought for husband as his wedding ring was becoming loose and in danger of sliding off his finger. He was dubious, but when tried uses it all the time now. He commented on the ease of adjusting it to fit his ring and the ring does not move around now. He was concerned that it would restrict his finger, but he doesn't notice it at all.
D**J
Invisible but difficult to fit
Good value for money and they were really discreet on my ring when I eventually got it on, the only thing I found it that it does size down quite significantly and it became too tight so it would be good for someone who needed to size down 2 sizes
A**S
Perfect. Invisible. Comfortable.
Really great product. I needed one for my ring that I got as a graduation gift. It’s something that I wanted to keep on all the time and never take off. This product allowed me to wear my ring and know that it’s not going anywhere. While they’re not the easiest to put on, when they are on, you just KNOW that it’s not going anywhere. I’ve been on nights out and just going about my day to day life and my ring has stayed put because of this product. It comes with a lot of different sizes for lots of different rings so you’re very likely to find one that will be right for your fit. I really can’t feel it either, it’s super comfortable and just feels like my normal ring without the ring sizer. My mom really wanted me to wear my ring to so when these arrived I sent her a video of how good it was - I’ve attached it, enjoy.
Z**T
Not fitting
This was so rubbish and didn’t fit my rings
A**G
Amazing!
Can't tell if soft plastic or hard rubber, but either way, they work really nice, got them on 3 out of 4 rings, If you are actually looking for something there, then you will see it, however majority of people won't even notice. Another good thing about them because of the material they are made out of, it actually grips onto your skin, So when you wash your hands they don't slide off your finger.
T**S
Work really well
I work in an area where my wedding ring can easily come off and get lost, used one for over a year now and they've worked well at preventing ring loss. After a year it broke but it was subjected to alot of wear and tear, so was happy to buy another. Only down side is, for what it is, it's a bit pricey at £9.99 and you only get 1 of each size.
A**B
Reducteur
Après avoir essayer plusieurs, je confirme que ces réducteurs sont parfaits. Ils se clipsent et s'ajustent à votre anneau. Assez discrets par rapport aux autres Je recommande même pour ceux qui ont des petits doigts
R**E
Sehr hilfreich
Hat definitiv geholfen. Jetzt passt der Ring bei meiner Verlobten wieder.
M**2
Junky old version , not new version as promised
Received one that has totally straight 'walls'. Nothing that clips around the ring all. Not at all as pictured and does not stay put! Old version.
S**E
Ajuste bueno
Es un accesorios muy fácil de colocar para que deje de dar vueltas el anillo y se juste y lo mejor son de varios tamaños muy buena opción
A**Y
Easy to use and works
We needed this for a fidget ring my son has. He's lost about 20 lbs. or so in the last 6 month and the ring was falling off his finger. This worked great. He said it's really comfortable and the ring is still able to easily spin but now it won’t fall off his finger when he moves his hand around. It came with several different widths that could be used for different size rings so he was able to find the one that exactly fit his ring. I tried it on one of my rings from childhood that was too small to wear on my ring finger but too big for my pinkie. You can’t even see it and it stays on really well. It also comes with a silver cloth and double stick tape that you can add if you need more thickness. The directions say to cut the sizer if you need less thickness. Now if they only made sizers to make your ring bigger! Haha
Trustpilot
2 days ago
2 weeks ago