Heavy Duty Welding Lead Extension manufactured in the USA with Made in USA Flex-A-Prene highly flexible cable. Cable Size: #4 AWG - 0.343" O.D.This extension has a Male Connector in one end and a Female Connector on the other end. This way it can be used to extend the reach of the Electrode Holder or Ground Clamp leads without moving the welder.Dinse 10-25 Cable Connector. ***Please check connector size in the picture and compare with your Welder and Lead´s Connectors/Receptacles to make sure it fits***RATED: 150 AMP @ 60% Duty Cycle. ***Please Check you welder´s maximum amperage and look for a cable extension that matches or exceeds that amperage rating***Choose the Cable Length from the Menu. These leads are assembled to customer´s specifications the same day the order is received, they are packed and shipped on a cardboard box or a white USPS Flat Rate Package. You will receive a ready to use fully assembled lead, no tools required.