CURT Class 4 Trailer Hitch, 2" Receiver, Select Ford F-150, Towing Draw BarCURT class 4 trailer hitches offer greater towing power to let you Bring It, featuring a fully tested design according to SAE J684 specifications. Each class 4 hitch comes with a standard 2" receiver for towing a wide variety of trailers, as well as a vehicle specific design for a custom fit on each truck and SUV application. CURT class 4 hitches are also covered inside and out with a rust resistant liquid Bonderite and co cured in a durable black