"This Champion Inverter Parallel Cable Kit doubles the power output of Champion 2000 Watt generators. Plus, it offers convenience, fitting neatly between two stackable inverter units and keeping receptacles off the ground. Dimensions L x W x H in. 19 1/2 x 4 x 3 1/8, Volts 120, Amps 30, Application Parallel operation for 2,000W inverters. Designed specifically for use with Category 5 Powered by Champion stackable 2000W inverters RV ready L5-30 and TT30R RV receptacles No tools required"