CURT Trailer Hitch Mount, 2-Inch Ball, Lock, Fits 2-In Receiver, 7,500 lbs, 4" Drop, Cap Model 45554CURT Trailer Hitch Mount, 2 Inch Ball, Lock, Fits 2 In Receiver, 7,500 lbs, 4" Drop, Cap Model 45554 The towing starter kit by CURT Manufacturing is the most convenient way to get set up with the basic towing gear you will need for a brand new trailer hitch. The starter kit eliminates the need for you to make multiple purchases and to try to figure out if you are buying the right products to fit your existing equipment. The CURT towing starter kit