Each of the machines is manual production, using the Japan motor, low noise, long-lasting stability. This allows for a harder-hitting machine with less spitting and nipple shredding issues. The Camer rotary tattoo machine fitted all brand cartridge grips and needles. The rotary tattoo machine designed by famous tattoo artists is used for tattoo artists. All for tattoo passion. Lightweight, Clip cord Connection, compatible with all cartridge grips, fitted tattoo grips, and needles. Random color will be shipped if the one you ordered is out of stock. Specifications: Weight: 157g Operating voltage: 5-18 V Switch frequency: 45-185 Hz Stroke: 3.5mm Speed: 10000Rpm Working Voltage: 7-9V