UNIVERSAL FIT: This set contains 8 adjustment rings in 8 different sizes. Ring inserts are inserted into the ring to reduce the size so that the ring fits securely on your finger without risking losing the ring. You can reduce your ring size by 0.5-1. Perfect for ring widths 1-10mm. Suitable for both men's and women's rings and even for large knuckles. SMART DESIGN: The ring adjuster inserts into the ring and the buckle secures the adjuster to the ring securely. Invisible and transparent: The transparent material means that the inlay is invisible and does not affect the beauty of the ring. Sturdy and Comfortable: Made of soft silicone, sturdy and good elasticity. PROTECT RINGS AND FINGERS: Additionally, ring inserts can help with knuckle problems by preventing skin pinching, which can prevent rings from falling into soap and dishwater. Specification: Color: transparent Dimensions: 10.0 cm 8.0 cm 1.0 cm Material: plastic/resin This package includes: Ring adjusters, set of 8, different sizes NOTE: Ring not included!