Trailer Ball = 2,000 lbs. 1 7/8" or 2" Ball Dia., 1" Shank Dia., 2 1/8" Shank Length. Toyota Trailer Balls can handle all Toyota vehicle tow loads as specified in each vehicle owner's manual. They are made of cold forged steel and include built in wrench flats to ease installation and torqueing. In additon there are new graphics for bolder, brighter displays to dress up your TPC.