Metal pins 1) Material: Brass, Zinc Alloy, Iron, stainless steel, aluminum etc 2) Process: injection or stampingorprinting 3) Color: refer to Pantone color chart 4) Enamel: imitation hard enamel, soft enamel, unpolished enamel etc 4) Back: various 5) attachment: military clutch or safety pin etc 6) packing: 1pc/poly bag for standard Custom design is welcomed Thanks for visiting