Thousands of 5 digit combinations, fast, easy advance to next number, nylon rollers and pawls, brass digit plastes with nickel-plated steel needles that punch clear tattoos. Sturdy cast aluminum alloy construction built to last. Double action handle, bites deep, with short, easy pull to prevent forearm fatigue. Heat treated side plates. Outifit includes pliers, 3/8" digits 0-9 along with two blanks and ink.