Reese Towpower Interlock Hitch Draw Bar a convenient and efficient towing solution by combining InterLock balls and ball mounts into a single wrench tightening system. This innovative design allows for easy installation using just one wrench, unlike standard hitch balls and ball mounts that require two wrenches. The ball mount features precise measurements including a 9-inch length from the center of the ball hole to the center of the pin hole, a drop of 1-1/4 inches from the top of the shank to the top of the ball platform, and a rise of 3/4 inch from the top of the ball platform to the top of the shank. Designed as a Class II hitch with a 1-1/4 inch receiver opening and a 3/4 inch hitch ball hole size, it supports a tongue capacity of 300 pounds and a trailer capacity of 3,500 pounds. Finished with a durable black power coat, this draw bar is built to last and comes packaged individually for your convenience. Model Number: 21901