Features: High conductivity coppers construction ensures optimal current transfer for efficient welding operations with enhances durability. Integrated structure and heat resistant handle provide enhances durability and safe, comfortable grip during prolonged use. Produced for professional welders in shipbuilding, bridge construction, and industrial maintenance sectors requiring heavy duty performances. Optimized for demanding environment like steel fabrication workshops, machinery repair stations, and large scale construction sites. Features interchangeable jaw capacity (300A/500A/800A) and corrosion resistant treatments to withstands rigorous welding tasks across multiple industry. Specifications: Materials: Metal Current Capacity: 300A/500A/800A(Optional) 300A Total Length:Approx.205mm/8.07inches 500A Total Length:Approx.235mm/9.25inches 800A Total Length:Approx.280mm/11.02inches Package Includes: 1Pc Electric Welding Machine note: 1.Please allow 1-2mm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.