The Dragonhawk Mast Player Edition rotary tattoo machine made of Space Aluminum frame and Japan motor Soft and Hard adjustment knob. Insert the tool into needles hole then rotate the tool to get the soft and hard. There is a Max Ban line on the tool, you can't rotate over the line. After adjusting the soft and hard of the machine, insert the cartridges into the machine, connect the DC line, and the machine starts working. Mast Player Edition tattoo machine has a needles deepth adjustment locater. Rotate the machine grip to adjust needles deepth. Dragonhawk Mast tattoo machine allowing a tailored tattooing experience to accomplish a wide variety of styles and techniques, well-rounded rotary tattoo machine designed for utmost accuracy and control. Emulating the grip and feel of an actual pen, this machine allows for more comfortable and precise tattooing procedures than traditional machines. Ergonomic, lightweight pen-style machine. This machine features a powerful motor and an advanced gear system that guarantees reliable, quiet operation without any vibration. The machine has a working voltage of 6V¨C9V. Pebble modeling. Specifications: Weight: 120g Machine Length: 117mm Stroke Length: 3.5mm Working Voltage: 6-9V Speed: 9V/10000Rpm