metal button: 1), Material: zinc alloy 2), Color: Anti-brass,gun-metal etc 3), ... your requires in your inquiry emails. Name New style metal button Material Zinc alloy,Resin,plastic, Size 18mmColorAs your requestedTechnicslaser engraved ... , plated/ Electro, electrophoresis, organic, kirsite / zinc alloy, rust proofing,1) High quality material2) Professional workmanship.3) ...