The flat pack packaging design is one of the most common enamel pins packaging methods, but it is also effective and gives your enamel pin a nice backing. It features made out of colorful card paper with text printed on it. It makes for a very attractive way of showcasing your artwork. Product name Custom mecha enamel pins with packaging 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.