Shipwreck Beads Lead Free Zinc Alloy Lobster Clasps, 5 by 9-1/2 mm, Silver, 40-Pack Rounded lobster claw clasps are ultra-economy clasps Made of lead-safe zinc alloy Works great with a 4-6-mm split or jump ring finding Available in silver color Measures 5-mm by 9-1/2-mm; comes in 40/pack