ELETIUO Filled Metal Ring Guard Set for Loose Rings, 12 Pack 3 Sizes for Different Band Widths, Invisible Ring Adjuster Tightener Spacer Fitter, Golden+Silver Color

My two rings needed different solutions. One needed only the plastic loops cut easily to the perfect size to fit. The other ring needed both the metal spacer plus a few of the plastic loops to keep the spacer bar from flattening against my ring when I slid the ring over my enlarged knuckle. I'm not a jeweler. Clamping the metal over my ring was the hardest part to get it to fit smoothly and flat around my ring so it was comfortable and wouldn't catch on clothing. That was more about finding the right needle-nose pliers, and skillfully using it than anything else. But I'm very happy with the outcome I eventually reached, and can now wear the rings that have a special connection to those I love without fear of losing them.

Flimsy, terrible instructions and bad quality. Did not work at all with my rings and the edges are sharp. If you’re considering using something like this, go to a jeweler and have a good stable metal sizer put in. This was just a waste of money

So easy to use and very effectively

Works but is very thin and hard to keep its shape

Great product and does as indicated

Good product to use

Not easy to adjust to the size you need

Purchased a new ring and at the store it fit ok. Few days later it started to feel loose. The ring would Come off while washing my hand. Decided to buy this ring size fixer and took a set of pliers and installed it. It works great.