The BXW0550-S includes the standard coupler hitch head, Standard shank with a 9 Hole/9? receiver stinger, clamp-on brackets, and spring bars rated for 550 lbs. tongue weight. If your trailer has a coupler that is welded to the top of the frame, and your trailer does not have cross-members on the tongue or equipment blocking, this SwayPro model will work for you. Use a tongue scale to determine your tongue weight after your trailer is fully loaded. Powder-coated steel construction. Limited lifetime warranty.