304 Stainless Steel Lobster Claw Clasps, Parrot Trigger Clasps, Manual Polishing, Real 24K Gold PlatedSize: about 12mm long, 7mm wide, 4mm thick, hole: 1mm.Double Sided Manual Polishing: These clasps are hand-polished, which means that the front and back of the clasps are manually put on the polishing wheel to friction, making it more shiny and smoother.