This injection molded Maxi Garden Tray Tray is made of 100% reycled popypropylene. Ideally sized for standard greenhouse staging. It can be used by private and commercial gardeners alike as a large irrigation table. The tray can be filled with grit or capillary matting if preferred. Shallow horizontal ridges on the base of they tray aid drainage. Its sheer size means that by simply filling the tray with water a large number of plants can be watered in minimal time. Internal capacity of over 6 gallons tray is 43″ X 21.5″ and 1.5″ deep. Sturdy and built to last!