Mast Flip is a newly designed machine with six-stroke length options of 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 ergonomic design helps to reduce hand fatigue during procedures, use Mast coreless motor that this machine continuous operation, low noise, long-lasting stability. Machine Specifications: Diameter: 30mm Machine Length: 111mm Stroke Length: 2.6-4.0mm Five adjustable option: 2.6mm,2.9mm,3.2mm,3.5mm,3.8mm,4.0mm Motor: Mast Coreless motor Working Voltage: 5-12V Battery Specifications: Weight: 53g Diameter: 32mm Length: 50mm Battery Capacity: 1350mAh Working Voltage: 5-12V