The Pro Rotary Tattoo Plier features double action which makes a deep bite with a short, easy pull which prevents forearm fatigue even when marking hundreds of animals. The Pro Rotary has five continuous chains, each with 10 numbered digits (0-9) and two blank spaces. Similar to a dating stamp, digits are easily selected by rotating. Tough steel handles, heat-treated for strength, brass digit plates with nickel-plated steel digit needles, nylon rollers and pawls make this a durable unit. Plier has 3/8" digits.