Stealth Fatboy PenThe newest addtition to the stealth pen line. The Stealth Fatboy Pen. Liner or Shader Can do both Lining or Shading Color Black anodize finish Machine Type Tattoo Pen + Protective Zipper Case Brand Stealth (Pen Series) Needle Swing 3. 5mm Swing Needle Protrusion 0 to 3. 5mm adjustable. With a simple twist of the grip, you can adjust how far your needle extends out of the tip. The grip twist smoothly and precisely Motor Info and Max RPM Japanese