Truck Dual Receiver Extender Trailer Towing Hitch Extension Bicycle Extender (GTW- 4000 lb.)DESCRIPTION UPDATE HITCH EXTENDER Fit All 2 inch square receivers hitch tube, use 5 8" hitch pin or lock (NOT INCLUDE). WEIGHT CAPACITY Gross tongue capacity: 4000 lbs 400 lbs, 5. 9" height difference between the bottom and top receiver pinholes, 8. 78" extension from hitch to bottom receiver pinhole. MADE OF HEAVY DUTY MATERIAL Finished in black powder coating durable and strong to provide superior safety and corrosion resistance, resist dust and