Double-sided, adds versatility and trims hours off large jobs. Revolving head holds 2 tattoos with up to 4 digits each. Your farm or registration number on one side, animal number opposite. Made of tough aluminum alloy. Available WITH or WITHOUT positive ear release that lifts needles, prevents scratched tattoos. Includes pliers, set of 3/8" digits 0-9, and 3 oz. ink jar.