Our Small Top Channel brackets can be mounted anywhere on the rack. Typically they're used to mount on the top of the rack for attaching roof top tents to the XPLOR Rack. They can be used in conjunction with a large assortment of attachments from Rhino Rack and RotoPax for mounting accessories. The Top Channel is sandblasted, pre-treated with 4 stage iron phosphate wash with deionized water rinse. They receive a Tier 1 OEM Supplier basecoat of zinc rich primer and then are shot with a top coat of black fine texture powder coat finish.