







🔒 Lock in your style with invisible precision!
The Feramox Invisible Ring Size Adjuster is a transparent, flexible TPU accessory designed to fit thin rings (1-4mm width) and reduce their size by 0.5 to 2 sizes. It offers a comfortable, skin-safe solution to prevent loose rings from slipping, featuring four adjustable sizes in one pack and an easy-to-use design that remains virtually invisible on your finger.





| Item Weight | 0.49 Ounces |
| Material | Tpu |
| Color | Transparent |
R**L
Comfortable, invisible spacer that actually works.
I was able to get a perfect fit with this product! I just received an engagement ring (YAY!), and despite ordering a custom size (my fingers are pretty small, size 4.5) it was still a little loose. I find the coil spacers uncomfortable and my ring spun on my finger which affected the look and comfort of my ring. That led me to this great product!The kit comes with 8 spacers (2 of each size) and I was able to find one to fit my thin band. Make sure to try all the sizes to ensure you're getting the best fit. I also like that this spacer snaps onto the inside of the band so it doesn't cover the diamonds along the side of my ring.If you have issues with the spacer falling off or need a slightly tighter fit, the kit also comes with this rubbery, double-side tape that you stick inside the groove of your spacer. The tape can be tricky to get into the groove of the thinner spacers, but is easy to remove or adjust, and doesn't permanently adhere to your ring. I didn't find that the spacer fell off on it's own ,but I added the tape anyway to make it a little more snug.Overall, I definitely recommend giving this a try. It's comfortable to wear and not clunky like other spacers. Fairly easy to use, and once you have it on, you'll forget it's even there.
C**Y
Work perfectly!!!
I ordered these to adjust the size of a family heirloom ring. The ring has an engraving inside the band so it's impossible to have it resized without ruining the inscription. Also, since it's a family heirloom and will be passed on in due time, I didn't want to do anything to permanently alter the ring. These size adjusters solved all my problems. They were affordable and included a variety of sizes (I wasn't sure what size I needed) so I have additional ones I can use on other rings. The ring fits me perfectly now and, since the size adjusters are clear, I can still read the inscription and it is almost impossible to tell there's a size adjuster on the ring. If I had to come up with something negative to say I guess that the size adjusters were a bit difficult to get on the ring. However, I don't really see this as a drawback since it makes me feel that the ring is more secure.
J**T
Works well, but not as well as getting your ring resized
It works well. Sizes down almost a full size. it does move around slightly on the ring. Nice to have on hand, but overall if you just have one ring that's too big, you might as well just get it professionally resized. It costs less than fifty dollars to downsize a ring generally, so if its a ring you wear everyday like a wedding or engagement ring its more worth it to get it resized than to wear this everyday.
S**S
They're okay at best
The plastic is so hard, that it's really difficult to get around the ring. Half of them don't even fit on smaller ring bands. The ones that do fit work pretty well, but not enough of them fit!
C**N
Love this!!
I purchased this for the XXS size (1 - 1.5mm).I am so happy with my decision to purchase this! I recently got engaged and my ring is absolutely perfect! The only issue with it was that my fingers fluctuated so much throughout the week! On warmer days, my fingers would swell up and the ring would be perfectly snug. However, on colder days, my finger would shrivel up and be 0.25-0.5 sizes too big for my finger...it would constantly spin and flop around on my finger.I thought about getting it adjusted, but didn't want to commit to something so permanent especially since my band is a micro pave band and I didn't want the small stones to be loosened from the adjustment at a jeweler. I decided to try my luck on Amazon and stumbled upon this hidden gem! I think it was one of the few, if not the only one, I was able to find that had a rounded adjuster instead of a square adjuster. I think this was also the only one that was able to accommodate a small band width -- which is the only reason why I decided to purchase this one. This was the only seller that I was able to find with a rounded, XXS (1-1.5mm) adjuster.I put it on as soon as I got it in the mail! Word of advice: only cut small snippets from each side at a time -- a little goes a long way!! The adjuster fit perfectly and did a great job making my ring fit nice and snug on the days I need it to. It's super comfortable and sometimes I forget that I'm wearing it with my ring. The best part about it (which is what I was most worried about) is that you can barely see it! Unless you bring you hand up close to your face to examine it, you can barely notice it an arm's length away.So happy I bought this! Hopefully they sell packs of just individual sizes in case I lose my adjuster...I'm not really sure what to do with the 3 other sizes, since I don't own any rings with that large of a width.
P**R
don’t buy
everytime you wash hands it just comes off, complete waste of money.
A**
Only way I can wear my engagement ring
I have had these now for 5+ years and they are the only way I can wear my engagement ring. I also now use them for my engagement ring replacement or any ring with a diamond/artificial diamond.They help rings to fit just right without having things resized and they help rings that are top heavy not to slip and slide all around and upside down on your finger. I even trim some of them at an angle and can bend and insert them once I get the ring over my knuckle, then pop it back off before removing the ring.They have lasted me five years and are holding up just fine with daily use through showers, dishes and everything else. I honestly just wouldn’t be able to wear any of my beautiful rings without these because of the fit issue with getting rings over knuckles but wanting them snug once on. For reference, my ring size is 5 to be able to slip past the knuckles and when I put one of the ring sizers on a size 5 ring it then fits the skinny part of my finger which is probably more like a 4-4.5
A**R
Didn’t work for me
I ordered these twice. The first time, none of them were wide enough for my ring. My fault for not reading details closely. Returned. The second time, for a much narrower ring. There was a fairly large diamond but when I trimmed the insert so there was room for my finger, as directed, the ring continued to slide around my finger. Returned again. I can see these might work in some situations but they did not work for me.
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