The Blue Ox TrackPro Weight Distributing Hitch is designed to distribute the trailer tongue weight evenly to the tow vehicle and to prevent sway caused by bad roads, wind from passing vehicles, or weather. TrackPro employs two proven technologies for all driving conditions. Sway Prevention is provided by a caster in the Blue Ox SwayPro Hitch Head. Sway Control uses rigid L-brackets that deliver additional points of friction. TrackPro provides a premium ride through the tapered spring steel bars that augment the suspension of the trailer and the tow vehicle.• Sway Prevention + Sway Management• Tapered spring bars augment the suspension of the tow vehicle and trailer• Rigid L-brackets provide additional points of friction sway control• Backup without disconnecting• Quick hookup and disconnect• Interchangeable spring bars• Includes 2-5/16" 13K rated chrome hitch ball• Limited lifetime warrantyBXW0850 TrackPro Standard Shank 7-Hole800-lb. Tongue WeightStandard hitch head and clamp-on latches included. 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 equpiment blocking, this TrackPro model will work for you. Rigid L-brackets provide points of friction sway control Quick hookup & disconnect / backup without disconnecting Includes 2-5/16"" 13K rated chrome hitch ball | Blue Ox BXW0850 TrackPro Weight Distribution Hitch, 7-Hole Shank, 8K