Andersen 3101 - Standard Adapter Stinger and Cable System Fits standard 2 5/16" gooseneck ball hitch. 24,000 lb. trailer GVWR and 6,000 lb. tongue weight. 3" vertical adjustment. Kit includes all hardware for attachment to 5th wheel trailer. Easy installation, even an inexperienced do-it-yourselfer can install it in less than an hour.