Caswell Plug N' Plate Copy Chrome Electroplating Kit Easily Plate A Chrome Colored Metal (cobalt) over Nickel, Copper, Steel, Brass, Bronze and more. Ideal for touching up spots of flaking chrome. Power Supply: 110VAC Input, 4.5V 300ma DC Output. US Plug Full Instructions and Free Technical Support Included Use Copper first over zinc or pot metal. Contact Caswell If You Have Any Questions Before Purchasing