Additional Details ------------------------------ Product description: RV2: Bolts to king pin box. 9" offset increases trailer swing for added maneuverability. Coupler latches and unlatches remotely. * Safely converts an RV trailer for towing with a gooseneck ball * Fits standard king pin box * Self-latching GNB 25/16" coupler "V-19" 28,000lbs * 9", 5" or no offset for added maneuverability * 4" height adjustments in 1" increments (12 1/2"-16 1/2" to top of ball) * Includes coupler release cable and hardware * 24,000lbs Gross Trailer Weight, 6,000lbs Gross Tongue Weight