Weather Guard Headache Rack Cargo Stops -2 Pack Model 11921-52-01Weather Guard Headache Rack Cargo Stops 2 Pack Model 11921 52 01 Used to support ladders and materials on the Weather Guard Aluminum Headache Racks. The cargo stops slide along the length of the rack for easy adjustment. Features Compatible with the WEATHER GUARD Aluminum Headache Rack models: 11902 52 01 Open Frame, 11908 52 01 Half Bar, 11904 52 01 Louvered, 11906 52 01 Hex Easily adjust the cargo stops by losening the knobs and sliding the stops