Package includes 40 lobster clasps and 974 jump rings in 6 different sizes for jewelry making, packed in a plastic case for easy storage. These lobster clasps are made of zinc alloy, and these open jump rings are made of quality iron metal, sturdy, lightweight, and durable, hard to fade or break off. With these open jump rings and lobster clasps, you can easily create chains of necklaces, bracelets, and anklets and make exceptional jewelry. These jump rings and lobster clasps will make your making easier than ever before. With their long-lasting luster and smooth surface, you can easily create exquisite pieces. These lobster clasps and jump rings are suitable for making various Diy crafts, such as bracelets, earrings, anklets, key chains, and other projects, and also ideal for repairing necklaces and pendants. Easy for beginners and Diy lovers. Perfect connectors for Diy crafts projects.