Feature: 1. Universal Compatibility 8 different sizes, there is always one that can meet your needs. Reduce ring 0.5-1 size, fit well for ring width from 1-10mm. Suitable for both Men and Womens rings, even for Big Knuckles. 2. Insert-Based Design The insert-based design provides the ring size adjuster mold to the curves of the ring band and the buckle can keep the adjuster stay well on the rings. Its also a solution for fingers with knuckle problems, easy to use, and never to worry about scratching rings or retaining moisture. 3. Durable and Comfortable Made of Silicone, which is much softer than PVC, is abrasion and oil resistant, and has good elasticity. Make your ring sit snug to the fingers without pinching your skin. 4. Invisible Transparent Color The transparent material does not detract from the beauty of the rings, you even cant feel it's existence. 5. Additional Polishing Sticks Double-side polishing sticks Greenside is for scratch removal and the white side is for extra fine polishing. Great for polishing Gold, Silver, Copper, Jewelry, Watch, Nail and etc. Notice: Overuse may wear rings. Material: Soft Silicone Color: Clear SIZE CHART: XXS:2 MM, Fit Ring Width 1-1.5mm XS: 3MM, Fit Ring Width 1.5-2.5mm S: 4MM, Fit Ring Width 2.5-3.5mm M: 5 MM, Fit Ring Width 3.5-4mm L: 6MM, Fit Ring Width 4-5mm XL: 7MM, Fit Ring Width 5-7mm XXL:8 MM, Fit Ring Width 7-8mm XXXL:9.5MM, Fit Ring Width 8-10mm Quantity: 8Pcs( Includes different sizes, as the picture show). Note: 1. Please allow a 1-3cm error due to manual measurement. pls, make sure you do not mind before you bid. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!