Roadmaster 222 Tow Bar Quick Disconnect. Replacement Kit For Roadmaster Tow Bars And Base Plates. Includes 2 Backing Plates, Four 1/2 Inch Bolts, Four 1/2 Inch Nuts, Four 1/2 Inch Lock Washers, Four 1/2 Inch Washers and 2 inch Pins. This set contains one pair of Roadmaster's car side connection points for the Quick-Disconnect system for it's tow bars. Made in the USA