TMS RECEIVER-HITCH-EXTENSION 4000-Pound Double Hitch 2-Inch Receiver Adapter Extension Extender Tow Boat RV Motorcycle Rack 4000 lb Capacity 17" x 9" Overall Length Come with two 2" receive - Lower Tube for OTwing and Upper Tube For Accessories Sturdy Welded Steel Construction with Corrosion Resistant Black Power Coat Finish