Qty:1pcs Material: Brass Size: 12mm/15mm/20mm/27mm Thickness: 3mm Usage: Spring snap clips are easy to operate and locking firmly when hanging items,keyring buckle is very durable and not easy to break. Ship from U.S.A in 1-2 business days. *Lead Free & Cadmium Free & Nickel Free* *All sizes are approximate ***Please conv. me if you need quantity discount.