The Eezi-Awn K9 Rotopax Horizontal Mount allows you to easily store a Rotopax container to the top of your K9 roof rack. It is made of steel, anodized and powder coated matte black, and includes hardware to attach to the rack. The mount is designed to attach front to back on a single slat. Attachment left to right on the rack will require reassignment of a couple holes by the customer to match layout of alternate slat T-slots. There are 2 locations that are elevated at each end of the mount to accept that attachment of the Rotopax mounts of your choosing. Rotopax mounts are not included.