Allen Sports Premium 4-Bike Hitch Mount Rack (2-Inch Receiver) 4-bike rack fits vehicles with a 2-inch trailer hitch only and features the new Quick Carry Arm Release 22-inch long carry arms individually secure bicycles with Allen's patented tie down system Folding carry arms quickly drop out of the way when rack is not in use Rack sets up and installs in less than 5 minutes Sturdy steel construction with black powder coat finish; Lifetime warranty