Attaches to 2-5/16" Gooseneck Hitch. 21,000 Gross Towing Capacity, 5,000 lb. Vertical Load Limit. Funnel shaped hitch head helps guide the kingpin into place, significantly reducing the risk of false hookups and trailer drops. True 360° nesting of the kingpin. Dual articulating head: front/back, side-to-side. Lightweight, 2-piece design: 122 lbs. total. Adjustable height: 17", 18", and 19".