Ideal for promotion and advertisement.Good quality,non-toxic and safe. Tin badge,Tin button badges1):Materials: Tinplate,safety pin. ... ):Size:25MM,30MM,35MM,40MM,50MM,60MM3):Processing: stamped brass and iron, die casting, spin casting, photo etching, printing, laser ... reference: pantone color chart or AOKI chart6):Gifty packing: leather and velvet box,bag, blister, backing card etc Tin badge,Tin ...