Dual 2" Receiver Trailer Hitch Extension Extender Rise Drop Adapter Bike Racks Now You Can Tow Your Trailer Or Boat And Still Be Able To Use Your Bicycle Rack At The Same Time. This Unit Comes With 2 Receivers One For Towing And One For Accessories. The Receiver Has A Powder Coated Finish With An Overall Length of 17 ; Receiver Size Is 2 Inches; Length Is 12 Inches And Drop/rise Is 7 Inches. Towing Weight Is 4000 Pounds; Tongue Weight Is 400 Pounds And Pin Hole Is 5/8 Inches.