KONMAY 5 Sets Antique Silver Lead&nickel Dia. 7.0mm Snake Head Hook Clasp Material: zinc alloy/zamak, lead and nickel free Hole Size: Approx. 7.0mm, the whole length of the clasp is approx. 40.0mm/1.6'' Color: Antique Silver Each pack includes 5 sets This snake head bracelet end cap hook clasps sets is great for leather bracelet making, with using single strands or multi-strands of leather