heavy duty 6AWG wire NEMA 10-50P TO 14-50R adapter NOT for EV/ TESLA USE 50amp 220V Length 13" from plug to plug NEMA 10-50P 50A 250V Welder Plug 3-Prong Male NEMA 14-50R 50A 125/250 Volt 4-Prong Female This adapter is for intermittent use only, not full time.