Coopache Invisible Ring Size Adjuster for Loose Rings – Ring Guard, Ring Sizer, 7 Sizes Fit Almost Any Ring

Good concept but poor design. There is no way to secure these to the ring. I was hoping the raised edges would help hold in place, but it doesn't. If it shifts around, it can easily slip out of place and fall out. The one I tried was on just a couple of hours when it started to slip out. I felt it move so I didn't lose it, but it doesn't do any good in the box. Time to try a different style.

The ring sizers do NOT stay on the ring. I tried every size and when you put your ring on comes right off. Did not know I couldn’t return. No where in the description does it say no returns. I don’t care it’s $3.99. Product is awful and can not be used. Scam.

It seems to be a good fit, until you start living life. Then it falls off somewhere and you don’t notice until your ring is almost falling iff your finger. We tried this one and another brand of plastic guard with the same result. Better off with tape, I think.

It's a little loose and doesn't feel super comfortable on the ring but it does it's job of keeping the ring from sliding.

Even after finding the right size of adjuster for my ring, these repeatedly fell off within the first 5 minutes of use. I would not recommend buying these because they do not work and do not stay on

This product is horrible, didn't work for me

They didn't stay on for me. I tried four times and couldn't keep one on for more than a day. There's another design that's like a spring you wind around the ring that I will try next. No problems with the seller, just the product didn't work for me.

Not the best product on the market. The size adjuster will not stay in place on its own. It can slip of even while wearing the ring. Works okay if you have some really thin two-sided tape, such as hem tape, to line the adjuster and keep it in place on the ring. If you do not want to make this slight modification, there are other alternative products on the market that may better suit your needs.

Read all the bad reviews after the item had been dispatched so too late to cancel the order. Glad I wasn't able cancel though as these are amazing!The ring size that my jeweller suggested is great when it's warm but not when it's cold. So now I simply put one of these in. It does not fall out (if the ring was huge compared to finger then it would, but I would suggest you get the ring re-sized if that's the case...). But if you're like me and it's only slightly too big at times then these are perfect.Very happy.

So I bought these as losing weight had caused my engagement ring to be loose. The jeweller would only re-size by 1 size tops so I was left with it rolling around my finger. I tried the spring like ring shrinkers, but found that it kept catching on my hair and anything else I touched. I first tried the inserts but didn’t understand how they worked and left them in the packet. I tried again the other day and found there were some instructions in the pack- oops! I got one fitted with the adhesive and got it back on my finger. Now it fits lovely and I haven’t caught it on anything. In fact you can’t even tell I have it on at first glance.

This pack will last a life-time! My husband's wedding ring slipped off recently, following his weight-loss! Having finally found it we were determined it wouldn't happen again. The plastic insert we used, clipped inside his ring and now it fits snugly.

Very easy to use product and quite self explanatory. Comfortably took my Fiancé’s ring down by about half a size just using the provided coiled plastic. I would say the the solid plastic inserts are very much hit and miss with regards to sizing, however the coiled plastic worked perfectly and more can be added or taken away if the fit changes or needs tweaking. Very good value for money and a perfect stop gap / alternative before committing to a resizing.

So the wrap around spring ones are ok, they do the job but move around on your find so you can see them sometimes which is annoying so I tried the other one and tbh it’s so hard to get it on your finger it hurts. Then it doesn’t stay when it’s on for very long so I went back to using the spring one. Pretty annoying product if you ask me