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 & trailer drops. True 360 degrees 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". Gooseneck mount.