40FT CORD LENGTH: Safely extend your power up to 40 ft away, which may be combined with your existing welder cords and adapters, protecting you and others from hazardous welder spark. 10 AWG & 3 CONDUCTOR: 25A 250V welding extension cord. It is flexible and durable, can be used indoor or outdoor. 10AWG(wire gauge), 3 conductors, 40ft length ， NEMA 6-50P to 6-50R. HEAVY DUTY DESIGN: Heavy duty extension cord corrosion resistant design. Perfect for indoor use. Resist to splash water. Apply STW jacket and good material for longer service time and heavy-duty performance. FLEXIBLE IN TEMPERATURE: Highly flexible annealed bare copper conductors, insulated with an STW jacket.Perfect for indoor and outdoor use. Resist to rain or splash water Operating temperatures range from -40°C to +90°C (-40°F to 194°F). WIDE APPLICATION: It will fit most welders including: Miller Millermatic welders, Lincoln Power MIG series welders, Hobart Handler, Ironman and Betamig welders, Century welders ,etc. 10 AWG & 3 Conductor,50A 250V welding extension cord