license plate(frame), metal sign with magnet, tin sign, dog tag, bottle tacker, number plate with 3M retro-reflective sheet/film ... license plate(frame), metal sign with magnet, tin sign, dog tag, bottle tacker, number plate with 3M retro-reflective sheet/film ... film)3. material: aluminum/ plastic (with electroplated/ chrome)/ iron/ zinc alloy/4. thickness: 0.23-1mm, at customers' option5. size is ...