Rev-A-Shelf 6472-24-15-52 is a 24-inch independently rotating kidney tray that can be installed in a cabinet to provide easy access to items stored inside. The tray is made of durable steel and features a 3/4-inch rim to prevent items from falling off. It can be adjusted to fit cabinets with a minimum depth of 14 1/15 inches and a maximum depth of 20 1/2 inches. To install the Rev-A-Shelf 6472-24-15-52, you will need to first locate the mounting holes with the template provided and then install the bottom positioner on the cabinet floor with four 3/4-inch x #8 oval head screws.