Package Contents: You will receive 80pcs lobster clasp and 160pcs open ring, enough to meet your production needs. Dimensions: Jewelry clasps is 0.2x0.5 inches, hole is approximately 0.08 inches, and opening ring is 0.2 inches. Excellent material: The lobster clasps for jewelry making and opening ring are made of metal alloy material. The surface of the lobster buckle is gold plated, non-fading, non-rust, no lead, no nickel, anti-allergy, each lobster buckle opening is very smooth. Multiple Uses: Bracelet clasps and open ring are suitable for your handmade jewelry and DIY crafts, can be used as jewelry linker, can be used for necklaces, bracelets and other jewelry making and repair. DIY Making: Lobster clasp and open ring are suitable for DIY necklaces, bracelets, anklets, pendants, pendants and other jewelry link accessories that you can make into your favorite jewelry and give them as Christmas, birthday, Thanksgiving and other holiday gifts to friends and family.