HEAVY DUTY & DURABLE MATERIALS - 30AMP (NEMA TT-30P) male to 50AMP (NEMA 14-50R) female | STW indoor/outdoor water resistant jacket | ETL listed SUPERIOR SPECIFICATIONS - 125 Volts and 3750 Watts | 10AWG American Gauge Wire | 100% copper wiring | 3 conductors ERGO GRIP PLUG - Male (NEMA 14-50P) power adapter is designed with ergonomic handle grip to safely plug and unplug connector 180 DEGREE BEND RELIEVE - Both ends of the connectors has 180 degree bend greatly reduce stress and pressure on the cord LIMITED LIFETIME REPLACEMENT WARRANTY + 30-DAY, 100% MONEY-BACK GUARANTEE - We are committed to our customers' satisfaction, which is why we offer a Limited Lifetime Replacement Warranty and a 30-Day, 100% Money-Back Guarantee. If you're not completely satisfied, simply contact us directly, within 30 days of purchase, for a full refund!