925 Sterling Silver -- The extender clasp is made of 925 sterling silver, comfortable to skin, ideal for most people to wear, while strong and sturdy enough to hold chains firmly. Tip: Please avoid it from water to keep shiny 2 Classic Colors -- You will receive 2 pcs fold over clasps in 2 colors (platinum and golden), 1pc/color, classic colors are easy to meet your matching needs. Size is about 10mm/0.39 inch long, 7mm/0.28 inch wide, 2mm/0.08 inch thick, the hole is 1.2mm Elegant and Versatile -- The necklace clasps are designed in the d shape, smooth and polished finish, matches classic and bright tones, simple, elegant and versatile, ideal to add into assorted kinds of jewelry design Easy to Use -- These clasps have loop designs that enable you to easily attach them to chains, just fold over or extend the folded part, then it is easy to close and open, perfect for those who love jewellery making Excellent Jewelry Accessories -- Ideal for use in various jewelry designs, including necklaces, bracelets, earrings, they can add a sophisticated edge to any jewelry crafts. You can use them for making new jewelry, repairing broken or old jewelry