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💍 Secure your style, not just your ring.
Feramox Invisible Ring Size Adjuster is a patented, reusable silicone clip-on solution that reduces ring size by 0.5 to 2 US sizes. Designed for all-day comfort and invisibility, it fits rings from 1mm to 10mm wide, prevents slipping and spinning, and is waterproof for reliable wear during daily activities. Trusted by thousands, it offers a damage-free, tool-free way to keep your rings perfectly snug.






| 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 |
C**C
Does the job!
My engagement ring is almost a perfect fit, but the weight of the ring when my hands are cool (not swelled from heat) meant it kept slipping to the sides. Nothing worth the risk of resizing for but an annoyance. I thought I'd give these a go and glad I did! This baby isn't shifting anywhere! It was blooming hard to get on though, my partner had to do it as it was a tough, fiddly job. Only use the tape if you need a tighter fit (I didnt). Mine does clip around the ring, doesn't move and is almost invisible. Can only see if from the back if you know to look and get close. It does seem like the kind of plastic that will go yellow after a while, but for the price I'll just reorder when that happens. Would recommend.
R**Y
Great but hard to put on and take off
Virtually invisible and exactly what I need, but very hard to get on and off
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
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
M**A
Good temporary solution to a ring that is slightly too big
Really good solution for ring half to one size too big. Really only needed one of the pieces as none of the others fit properly which makes this quite an expensive purchase. Having said that better than getting the ring sized particularly as my fingers do swell in the heat.
S**1
It works !!
It helped to wear my ring!!
J**R
Take care and take time
Take care fitting and don’t rush. The tape is useful but tricky to fit. A great product and such a clever idea.
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.
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
C**E
Great ring sizers!
These ring sizers are great. Two different styles in various sizes. Very easy to attach and they really do the job. Very pleased with my purchase.
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.
T**L
Nice product. This review compares two different products.
This is a review and comparison of two different products: Feramox Invisible Ring Size Adjuster, assorted sizes (this product), and the Vancool (18pcs) Ring Size Adjuster (1.5mm/2mm/3mm) (https://amazon.com/gp/product/B073J4X9DH). I have several rings that were a little too loose and kept spinning around on my finger. I didn’t want to have them resized, because then they’d be too tight to go over my knuckle, so I decided to try some ring sizer products to see how well they worked. Bottom line: Overall I prefer the Feramox insert-type adjusters to the Vancool coil-type adjusters because of the look and comfort, but it all depends on your preference. Either type can be put in place after the ring is on your finger, so you don’t have to worry about getting the ring over your knuckle. The biggest drawbacks to the Feramox ones are that they may fall off and get lost if you don’t use the adhesive (and maybe even if you do), and you may only be able to use one size out of the package for a particular ring. The coil-type has the advantage of allowing you to adjust the ring size a little better by using thicker or thinner coils, and they won’t fall off. Detailed comparison: The Feramox adjusters, which were sold by “Freeman Direct”, come in a package of 8 in various sizes, to fit band widths from 1mm to 10mm. (They also sell packages for wider widths, so be careful what you order. If you are looking for sizers for thin rings like solitaires, this is the one you need.) Also included in the package are a silver polishing cloth and a sheet of adhesive. Unfortunately, the product information sheet comes attached to the adhesive sheet, so I didn’t realize what it was at first. There was a blue-green card that had the Feramox product information on one side, and a yellow backing on the other. The yellow backing was actually the backing for the adhesive tape sheet. I had to peel the Feramox card off it, which revealed the instructions for using the tape on the other side. The tape has a transparent film on one side, and the yellow paper sheet on the other. When you pull them apart, be sure to peel the Feramox card off, leaving the transparent film attached to the yellow sheet. Do not peel off the yellow sheet. If you choose to use the adhesive, cut a sliver of the tape to fit inside the groove in the ring adjuster. Peel off the yellow paper and attach the adhesive to the adjuster, then peel off the transparent film. I will probably not use the tape, because with the sizer stuck onto the band, I probably wouldn’t be able to fit the ring over my knuckle. Instead, I’m going to try wearing it by just slipping the sizer in place after the ring is on my finger. I’ll have to be careful not to lose it when removing the rings, but I think it will probably work out better for me, and none of the rings I’ll use it with will get daily wear. I found one sizer that perfectly snapped onto a 5.7mm gold band. The smallest sizer snapped onto a ring that was 2.16mm wide and stayed on. For the rings that are 1.25mm and 1.83mm, the smallest sizer wouldn’t stay on the ring by itself, but it seems to work okay on them if I slide them on once the ring is on my finger. Once in place, they’re virtually unnoticeable. The sizer is barely visible when looking at the palm side of my hand, and I don’t feel anything unusual except that the ring just feels a little thicker. It works great to keep the stone on the top of my finger where it should be, instead of sliding around. Unfortunately, you have to purchase a package of 8 different sizes, when you might only need one or two of the sizes. I wish they had packages of just one particular size, then I wouldn’t worry about losing one. On the other hand, I was able to use 3 of the sizes in this package, and since I’m not going to use the tape to stick them on the rings, I can move the smallest one between the rings that need it. You can use a sizer that’s a little wider than the band, so the two smallest sizes both worked for 3 different ring sizes. One other thing to note: When trying to get the rings on/off my finger with the insert in place, I found it a little more difficult than when using the coil type. Maybe it’s because the coil rolls around the ring, and helps the ring sort of roll over your finger. So if you do tape the insert in place, that might be an issue. Vancool Adjusters: This product was sold by “Nest My Life”. It comes with 18 adjusters (6 each of 1.5mm, 2mm, and 3mm coils, and also includes a polishing cloth. The adjusters are easy to use, just coil the desired size around the ring and cut it to desired length. I looked at a lot of similar products, but purchased this one because it included the smallest coils (down to 1.5mm). Most other packages did not come in a size less than 3mm. On a thin ring, the smaller coils look much better. The advantages of the coil adjusters are that you can use whichever thickness provides the best adjustment, and you don’t have to worry about them falling off the ring. You get so many of them, and only need a small piece for each ring, that it’s not a big deal if you need to replace them. Since the coils wrap around the ring, you don’t have to worry about them falling off. I also found that rings with the coil adjuster were easier to slide over my knuckle than rings with the insert adjuster, because the coils rolled and helped the ring move. But if you do have a problem getting the ring over your knuckle, it’s possible to put the coil on while the ring is on your finger. The downside is that they’re much more visible than the inserts, and are a little less comfortable. They also seem to slide around on the ring, which wasn’t a problem with the inserts.
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
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