Multi-Pro/Multi-Flex Tailgate storage box creates a space for tie down straps, hitch pins, or other accessories. This compartment fits in the manufactured holes in the inside of the Multi-Pro tailgate. Each box comes with a lid that snaps in and out so you can access what is inside. The "Inner Boxes" will fit in all of the holes in the tailgate. The middle two holes have wires and connectors that may need to be moved before install. The "Outer Boxes" only fit in the outer holes as it extends about two inches to one side. These products are produced through 3D printing. They may have small defects from the printing process. Only install when the product is warm.