925 Sterling Silver: These spring clasps are made of 925 sterling silver, safe accessories and craft making component, provides good formability, high workability and durability, and long-lasting use, not easy to deform or break, high brightness, not easy to oxidize, hard to rust or change color, does not fade easily and smooth to the touch. 3 Sizes: Contains 3 different sizes round spring gate rings, size about 6/8/9.5mm inner diameter, about 10/12/14mm outside diameter, 3mm thick, 1pc each style, 3pcs in total. The assortment of sizes made it easy to match up with different projects, enough to meet your daily needs, can help you easy to jewelry making and as a gift. Round Spring Clasp: Round spring gate rings design, keeps them from slipping, working with chain to extend the length or repairing. Round buckle hook available as your handicraft accessory, the spring round ring has a smooth surface and edges, great for adding clasps to necklace or other jewelry with beads and charms. Easy to Use: The clasp features a spring clasp design that is easy to use and secure, you just have to press the opening and then you can use them. And easy to match, with silver color style that complements a wide range of bead, chain and accessory, this clasps easy to match with a variety of jewelry designs. Widely Used: Perfect for making jewelry, clasps, charms, crafts or some other DIY projects, used to hang crafts or decorations to jewelry you want. Using them to handmade bracelet, necklace, anklet, sweater chain and so on, show your imagination and create your own unique jewelry. And suitable for repairing your existing jewelry.