Tow smarter with TowSmart.A(R) The TowSmart Class IV Chrome Trailer Hitch Ball fits directly into your trailer coupler and creates a more secure connection to your valuable cargo. Fine threads provide a secure, lock-tight hold. Made of durable, heavy-duty construction with a chrome-plated finish that is corrosion-resistant to withstand any weather. 7,500-lb. capacity 2 5/16" ball diameter 1" shank diameter, 2" length Securely attaches to trailer hitch ball mount Fine threads provide an enhanced hold Can be used with both standard ball mounts and TowSmart X-Mount Includes locking washer, mounting nut and wrench flats Order today!