Materials: Augsun lanyard swivel snap hooks and key rings are made of quality zinc alloy, durable, anti-rust and long time for use. Which can easily clip your keys or jewelry pendant to keychains. Flexibility: These key chain clip hooks have utmost flexibility of 360 degree, you can rotate it any direction and easy to use. The lanyard snap hooks are a snap closing accessory to ensure your items will not fall off. Size: The total length of the gold lobster claw clasp is 31mm/1.22", ring inner diameter is 1.1cm/0.43"; the key ring diameter is 2.5cm/0.98". Right size easy to match your hand made crafts projects. Applications: Premium swivel snap hooks and key rings are suitable for lanyards, webbing strap, keychains, handbag, purse, also great for jewelry making, kids art projects and other small objects. Quantity: Package includes 50 pieces gold lanyard snap hooks and 50 pieces gold split key rings, total 100 pieces. Great choice for DIY keychain jewelry projects.