New 300 12x6 Lobster Clasp & Split Ring Cord Part This is a new set of nickel plated lobster claw clasps and small split rings. These parts have many uses for jewelry, fishing, and other artistic uses. Lobster Claw Clasps: You receive 100 nickel plated lobster claw clasps. These are great for necklaces, bracelets, and even pocket watches. Each measures 12 mm long and 6 mm wide. Split Rings: You receive 200 small nickel plated split rings. These are great for attaching items to charm bracelets or for quick connecting of fishing lures. Each of these rings measures 6 mm in diameter and 1 mm thick.