Dragonhawk rotary pen tattoo machine Japan motor, continuous operation, Low noise, Long-lasting stability, Light weight, unibody. Weight: 135g( 0.30lbs). Stroke: 3.5mm. 0 ¨C 4.5mm adjustable needle depth. DC connection Dragonhawk Mast Cartridges, Fast rebound, E.O Gas Sterilized. One piece needle allows for maximum stability and control. Indentation at tip enhances ink flow and saturation. Membrane mechanism prevents ink spitback Mast Needles made of 316 medical grade stainless steel. Compatible with all popular pen machine and cartridges grips This machine features a powerful motor and an advanced gear system that guarantees reliable, quiet operation without any vibration.