Specification Material: alloy Color: Silver, rose gold, gold, ancient red, ancient cyan Size: 12mm Quantity: 20pcs Feature Ajustable Diameter: These rings are adjustable to fit most ring sizes, so you dont have to worry about stocking up on multiple sizes. Easy to Use: Paste the lovely pattern with the clear glass cabochon, then cover the glass cabochons on the ring pendant tray, and then the unique finger ring is finished. Package Content 20 * Blank Rings with Flat Base