8 Kinds of size choices: each sheet has 8 different sizes of ring size adjusters ranged from 3 - 10 mm in length, all the width is 38 mm, the largest part of each sheet is measured about 78 x 38 mmFor DIY: the largest part is designed for DIY, you can cut any shape for wanted, also all the thickness is about 0.5 mm, can reduce the gap between your ring and finger, if the ring is just a little bit bigger, you just need to use a half of itProduct material: the using material is silicone, soft when using, having great sticky that is non-slip when the first using, can be applied for several times until the sticky is fadedRing size adjuster: if your rings are not your size, this ring adjuster can let ring (with width more than 3 mm) more fit your finger size, invisible appearance that cause no influence to the visual effect of ringAmount of package: inside the package comes with 5 sheets of loose rings adjusters (85 pieces in total), 1 piece of clean cloth (blue color), and a instruction for checking