Mast Tour machine has Japanese coreless motor, working at least 3,000 hours.This rotary tattoo machine simple, classic, and the most suitable machine for precise line work, black and grey shading, solid color packing. Gives a possibility to pack faster, more quality and less trauma. Perfet tool for tattoo artists. Continious operation.Smooth, soft, and quiet operation,Ideal healing results. Mast Evo cartridges light clear colors tip body to easy tattooing and better visibility. 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 This tattoo machine frame part is separate with the grip. Clean the tattoo machine frame easily. And the grip is autoclavable. Seamless frame that protect the inside of the machine. Lightweight only 82g. Stroke length: 3.5mm, Needles Depth: 0-4mm. Tested lots of times and use polymer materials RCA jack. Compatible with all standard tattoo power supplies.