Epicord 12" RV Dogbone Power Adaptors 50A Male to 30A Female 10AWG Cord Extremely Heavy Duty - Rated at 125V/250V 50A plug, perfect replacement for the old/worn out cords of RV, Camper, Caravan, Motorhome, etc Fairly Solid RV Plug - Adopts well-conductive copper pin and flame retardant PVC plastic housing, with strain relief clip and bushing to fix the cord, more stable and safer wire connection Humanized Design - Our products are designed with handles for easy insertion and unplugging, and it is also a nice tight fit so that the plug will not fall out High Quality - STW extension cord is humidity and heat resistant, and it will keep flexible in the temperature range from -10 degrees to 60 degrees. All-round Protection - Good stability, anti-aging, high bending strength PVC sleeve wraps the premium copper wires, makes it durable and compact.