... paper, or with 3D effect4) Attachment: magnet, safety pin5) Color reference: Pantone color chart,Depend on your request.6) OEM orders are highly welcome ... -etched,Stamping,Die-casting,Stamping,baked with resinColorwith your designed color,standard colorSize1.5CM,2.5CM.3.5CM.4CM,4.5CM ...