Great Solution - For fingers with knuckle problems and without having to re-size, perfect for loose rings Soft and Flexible TPU material, safe to use on skin Virtually Invisible on the rings Classic 8 PCS/Set in assorted sizes, there is always one for your loose ring Fits Ring Width from 1mm to 10mm, works both on men's rings and women's rings Package Includes: 8 pcs ring size adjuster, fit 1-10 mm Width Ring