1)Materials:brass,iron,zinc alloy,copper,aluminum alloy 2)Size: 4.5cm dia and so on 3)Design & logo: Can according to client's requirements. 1)Materials:brass,aluminum alloy,zinc alloy,copper 2)Size:can be changeable as our client's required. 3)Design & logo: Can according to client's requirements. 4)Electroplating / finish: nickel,black nickel,imitation gold,gold,glossy copper,antique copper,green bronze,silver,antique silver plating and so on. 5)color reference : (pantone color chart)-with soft enamel,hard enamel/cloisonne,pad or screen printing,by paper sticker or epoxy coating surface. 6)Various attachments for your options. 7)Sample time:5-7 days after confirm the artwork. 8)Mass production lead time:according to your order quantity after confirm the sample. 9)Shipping via Air freight,by sea or by DHL/TNT/UPS/EMS OEM Service Offered;design Service Offered;Buyer Label Offered.