cell phone strap 1) Material: zinc alloy 2) Size: as your design 3) Surface treatment: stamping and polishing cell phone strap1)Materials:zinc alloy, brass, stainless steel, aluminum, plastic are available as customers' demands.2)Size:15*15mm, thickness1.5mm, or as your design.3)Surface treatment: Die-casting, painting, epoxy, enamelling, printing, etching, engraving, polishing etc., as your ...