This machine with six stroke length options 2.6mm,2.9mm,3.2mm,3.5mm,3.8mm,4.0mm for a wide variety of procedures, suit for all kinds of tattoo style lining, shading, color packing.The Internal structure of the machine allows artists to keep the Flip Pen bagged while making stroke length adjustments, ensuring uninterrupted and seamless tattooing. The ergonomically design helps to reduce hand fatigue during procedures, use coreless motor that this machine continuous operation, Low noise, Long-lasting stability.Specifications: Weight£º171g Diameter£º30mm Length:117mm Stroke:2.6/2.9/3.2/3.5/3.8/4.0mm Speed:12v/10400RPM Motor type: Coreless Motor