EXR Click-In Crossbar Package [BLACK] with Square holes for EXR Click-In Accessories is a very strong, American made crossbar system. These crossbars accept most other mfg. accessories AND EXR Click-In Accessories. This package fits vehicles with raised roof rails with an inside width of 37.25" to 53.5" and rail thickness between 1.25" to 2.00". Package Includes:  [EXR Clk HD, 3/8" to 2" High, BLK xBar Pkg, (4) 48" w/ Z-Brkts & Feet, rail inside width 37.25" to 53.5"]. The component part numbers in the box are: (4) 8-00-9752-BK, (1) 8-00-9794, (2) 8-00-9795, (1) 8-00-9796, (4) 8-00-9798, (3) 8-00-9915. Crossbars are ~48" wide and come with (4) threaded holes on the bottom that can receive the EXR Weight Distribution feet. Top of crossbars will be 1.76" above factory roof rails. The brackets that mount to the roof rails each have a threaded hole for additional, optional roof rail reinforcement; so this package has a total of