Shipwreck Beads Base Metal Alloy Lobster Clasps, 6 by 12-1/2 mm, Silver, 100-Pack Rounded lobster claw clasps are ultra-economy clasps Made of electroplated metal alloy Works great with a 4-6-mm split or jump ring finding Available in silver color Measures 6-mm by 12-1/2-mm; comes in 100/pack