GM02 uses special materials to make gun shell and gun nut, in order to protect the high voltage from running away, output voltage of cascade is 85~95kV and output stability. Electrode holder material is Teflon with thermostability and not-sticky powder, it containingvitreous glaze, service life and conductive effect are better than carbon. Perfect for Gema Optiflex series. OEM and Custom logo design are available.