Our pins are struck from the highest quality metal to ensure a beautiful, classy, and durable product. soft enamel, soft enamel pins look great and are highly economical. Product name Custom chemical enamel pin Material Zinc alloy / Stainless Steel / Iron Design 2D/3D, Custom shape+logo Technology Soft enamel , Hard enamel ,Die Struck Ect Shipping FedEx / DHL / UPS / TNT etc.