Convert-A-Ball chrome hitch systems are Convenient, Change sizes without tools in seconds. Economical standard ball and shank lets you use ball units on more than one vehicle. Safe engineered and tested to load classifications. Patented locking system assures proper connection. Features 3,500 pounds maximum load, chrome plated solid steel construction Cotter pin and safety hole drilled. Meets and exceed national standard SAE-J684-E for ball hitches V-5 rated