Male Plug: 50 Amp NEMA 14-50P 125/250 Volt for RV plug, ETL Listed Female Connector: 30 Amp NEMA 14-30R compatible with Tesla charger and dryer Heavy Duty: Molded plug, copper wiring coated, heavy duty flame retardant, UV-resistant, 10 gauge STW indoor/outdoor water resistant jacket, 12 inch Better Than DIY: This is cheaper than building yourself, molded plug more safe than assembly plug, better than DIY Upgraded: Upgraded quality for ten years of company. Its unique color makes it stand out in a tote full of other adapter cords, making it quick to find.If you have any questions, please contact us to get service CircleCord Charger Adapter Cord