Size: the size of lobster clasp is 12 x 7 mm, its a common size for any jewelry and crafts making Each set comes with 100 pack lobster clasps, packed with a bag . Good material: lobster clasps are made of zinc alloy, nickel-free and lead-free Platinum color clasp is brighter than silver, which makes your crafts looks better . Making manual art crafts: you can use them to make bracelet, choker, jewelry and other art crafts The bright clasps make the chains and rings look good . Durable buckles: the hooks are small but durable, the holes are the good size to thread slim cord through and put other links on . Notice: they are small parts, please keep them away from children The lobster claps are the good device for connecting your jewelry together .