Warning: Please don’t use the tattoo ink to tattoo on human skin if you are not a professional tattoo artist. Otherwise, you may hurt yourself.
More details about the tattoo pen machine. Net weight: 160g Gross weight: 366g. Working voltage: 8-10V. Start voltage: 5V. Rpm, 10V-1W r/min. Stroke, 3.5mm. 0 – 4mm adjustable needle depth.