... button, Double rivet, metal buckle, alloy buckle, alloy snap button,Nynon snap button....1. Metal/jeans button material : Zinc ... alloy, copper, Brass.2. Metal/jeans button size: 14mm, 15mm, 17mm, 20mm, 22mm, 25mm.....3. Customer's design ... & logo is welcome.4. All metal button ...