Description: High quality material, durable, rustproof and never fade. Electric Current: 500A Improve the stability of the welding process and improve the ability to conduct current. Operation Modes: Spot Welding, Cold Welding. Come with 10Pcs/Box Specification: Material: Brass/Red Copper Length: 9.5cm/3.74inch(Female), 7.5cm/2.95inch(Male) Inner Diameter:1.3cm and 0.6cm(Female); 0.9cm and 0.5cm(Male) Package Includes: 10 Pieces Conduct Nozzle