The Buddy Box allows two RVs that use 50 amp power to plug into one 240V/50A RV receptacle. It is imperative to know that a 50 amp RV receptacle actually supplies 100 amps of power which can be split into 50 amps per receptacle. The Buddy Box does just this by giving 50 amps of power to each RV plugged into it. The Box is perfect for extra guests and rallies. It is made of high impact ABS plastic & it will not corrode, and is weather resistant. 1 year warranty from the manufacturer. Made in the U.S.A.