6.3mm mono plug, Nickel plated shell, Nickel plated contacts FEATURES: • Ergonomic heavy duty design with Zinc alloy shell and PA 30% GR bushing • Slim 1/4” plug for ease using • Additional rubber sleeve provides an excellent cable protection • Special strain-relief clamp for ease tightening the cable without screw • ROXTONE brand engraved on the shell • Patent protected TECHNICAL DATA: Shell Zinc alloy diecast Insulation PA66 30%GR Contacts Brass Contacts plating Nickel Bushing PA 30% GR