5Pcs Mast Nano Rotary Pen Machine PMU SMP Cartridge Short 3.2mm Stroke

Pen-style rotary machine for use with needle cartridges. Compatible with all standard power supplies. Machine frame are made from solid rods of high grade aluminum then polished and anodized, laser engraved logo.Specifications: Weight: 82g Size:23mm*78mm Working Voltage: 5-8V Motor: Coreless motor, 8V/9000Rpm Needle Stroke: 3.2mm