Roadmaster 576 All Terrain Sterling Tow Bar Class IV. 8000 Pound Towing Capacity, 2 Inch Shank, Adjustable Arms, Mount To Base Plate. Includes 6 To 7 Wire Power Cord, One 6 Wire Plug, One 7 Wire Plug, 6 Wire Electrical Socket And EZ Hook Safety Cable. Releasing your towed vehicle is easy with Roadmaster's All Terrain tow bars...even when the tow bar is at a hard angle. Each is upgraded with Roadmaster's exclusive Freedom Latch, which releases the tow bar at any angle or bind - first time, every time. Six-wire electrical cord, one 6-wire plug (attached) and one 7-wire plug.