1The handle is designed with threads to prevent slipping during use. 2Made of stainless steel, anti-rust and wear-resistant. 3This tattoo machine regulator is suitable for various coil tattoo machines, not for pen motor machines. 4The fixed tattoo machine black iron makes the electric shock bar, shrapnel and tattoo needle of the tattoo machine on the same straight line, so that the working performance of the tattoo machine is more stable. 5Strictly manufactured according to standard requirements, worthy of your trust.