... color 3, Nickel/lead free 4, High quality, best price Jeans button Metal button, shank button, alloy button, zinc alloy button ... button,Nynon snap button.... 1. Metal/jeans button material : Zinc alloy, copper, Brass.2. Metal/jeans button size: 14mm, 15mm, 17mm, ... , sprayed, polished, etc.6, Packing : Poly bag & standard export carton.7, More than 15 years experience of manufacturing for the button ...