ULTNICE Large-sized Swivel Clasps Lanyard Snap Hook Split Ring Key Holder 17/16x5/16inch Pack of 5 5 pieces of the Large-sized swivel lobster clasps in one set will be sold together Size: Total length: about 1 7/16 inch (36mm); clasp inner width: about 5/16 inch (8mm) The lobster clasp has a strong spring loaded snap gate Easy to use: Pull and hold trigger to open. Realease it and the clasp will automatically close Can be used for keyrings, small dog leashes, hanging crafts or decorations, beading projects and more