Hardware Resources Clear shelf space by adding storage to the cabinet door with a metal door mounted tray system. System comes with two track pieces and two 3" deep trays. Trays are adjustable along the track. Great for organizing spices and other items in cabinets and pantries. Can use multiple sets on tall pantry doors. Add extra trays to add additional storage. Heavy-duty wire construction in polished chrome finish. Quickly mounts with just four screws.