1、BRUSHLESS MOTOR: Equipped with a built in 20 x 6mm brushless motor, this tattoo pen delivers powerful and stable output, providing a strong and precise tattooing experience. 2、3 STROKES LENGTH: Comes with a 3.5mm eccentric wheel, and additional 2.5mm and 3.0mm eccentric wheels, allowing for customizable strokes. 3、DUAL ADJUSTABLE STEEL BALLS: The rotating handle features 2 adjustable steel balls, which emit a crisp sound when rotated. They allow for precise needle stroke adjustment. 4、ERGONOMIC ANTI SLIP HANDLE: Designed with ergonomic precision, the handle is carved with anti slip edges, providing a comfortable and fatigue free grip even during extended tattoo sessions. 5、STAINLESS STEEL DRIVE BAR: Made from excellent stainless steel, the drive bar is durable, lightweight, and resistant to deformation and wear, which ensures low vibration and quiet operation (48‑50dB). Item Type: Tattoo Pen Material: Aluminum, Electronic Components Product Size: Approx. 90 x 28mm / 3.5 x 1.1in Interface: RCA Needles: Tattoo Cartridge Needles Eccentric Wheel Stroke: 2.5mm, 3.0mm, 3.5mm (three adjustable strokes) Craftsmanship: CNC Engraving Motor: Built in Brushless Motor (approx. 20 x 6mm / 0.8 x 0.2in) Vibration Level: 1.2m/s² Decibel: 48-50dB 1 x Tattoo Pen 1 x CA Clip Cord 1 x Tattoo Pen Pouch 1 x Accessory Bag (Accessories Style And Quantity Random Delivery)