Mast Tour Max tattoo pen machine has 32mm grip bigger than Mast Tour, made by Mast Tour Pro machine coreless motor Needles Depth: 0-4.0mm. Stroke Length: 3.6mm. this tattoo machine rotary compatible with all standard power supplies and wireless power battery. Effortless to cover and protect Efficient cartridge change and replacement. Package includes one Mast Tour Max rotary tattoo machine and one RCA cord. This rotary tattoo pen advanced gear system that smooth, soft, and quiet operation, Ideal healing results. Flexible and lightweight for every style Gently and smoothly transfers ink to the skin; suitable for all skin types.