"The Vantech J2000 Van Rack is very similar to the J1000 Van Rack, with the exception being that it comes with the accessoriesthat the J1000 does not. It comes with the A285 crossbars that are made of the reinforced aluminum with channels and can support 400 pounds. It includes a side support, a ladder stopper, and hook & loop straps to secure your ladders. The low-profile design makes it more economical with fuel, and the crossbar shape helps with the wind noise. This rack will increase your work capacity and your fuel economy! | Vantech J2000 2-Bar 50"" Aluminum System J2000B"