Package Includes: The double head clasps include 10 pieces lobster clasps, each chain is about 25 mm/ 0.98 inch in length, each lobster head is about 10 mm/ 0.39 inch in length and 0.6 mm/ 0.02 inch in width, the proper size is suitable for small and medium jewelry design or crafts, meeting your various jewelry needs, you can share them with friends or prepare them as spare parts. Made of beautiful stainless steel material, with nice allergy and discoloration resistance, strong and not easy to break. No need to worry about rust, they can serve you for a long time. The surface of each extension chain is polished by a delicate process, very bright and shiny, suitable for your jewelry accessories. Ingenious Design: The metal lobster clasps adopt a classic double-headed design, which can firmly clamp both ends of necklaces or bracelets, and they can easily add extra length to your jewelry, such as chains, necklaces, bracelets, anklets and chokers, so that you can get the length you want, convenient to wear and take off, bringing you nice using experiences. Wide Use: These lobster clasps are perfect. For making lanyards, keychains, purses, backpacks, handbags, dog collars, straps, bracelets, and other crafts; the creative possibilities are endless. The metal swivel clamp opening makes the clips easy to use and maintains a firm grip.