The Harvesting Shelf Kit consists of timber brackets and hardware, while the timber ledge for the harvesting shelf is formed by placing the rear window cover atop the brackets when you remove it for harvesting. (It is designed this way so that the shelf doesn't need to be stored separately when not in use or so it doesn't get lost).

The hardware and brackets come wrapped up and placed inside one of the cavities of the acrylic tray, so can easily be mistaken for buffer packaging. It's nice and secure to pack them this way, but it can be a bit confusing!