High Quality Eyebrow/Lip Digital Tattoo Permanent Makeup Pen /Machine     Description:   Material: Aluminum alloy   Working Voltage: 6V-1A   Speed :15000r/m--30000r/m, high performance;   Rotation stable, low noise ;   Suitable for eyebrows, eyelids, lips, and tattoo design;   can transfer out the length of the needle arbitrarily;   Stroke can be adjusted easy, by rotating the silver scale ring, needle length adjustable from 0-2.5 mm;   It is perfect for the beginner as well as professionals.