Mast Tattoo Machine pen can interchangeable 3.2 mm and 3.7 mm stroke wheels One turn give k
One turn give knob dial for hard to soft adjustment of needles strike.
Hitting knob– turn the cap clockwise harder and conter clockwise sofeter
Connect with RCA cable, Weight 153g , 9V/10000rp ,woking voltage:6-9V
Ergonomic and lightweight design ,Japan motor, strong power, light sound, most suitable for precise liner work, black and grey shading.