Excess water is stored below the planting area and extracted by plants and flowers as needed. Comes with durable powder-coated black brackets that install under window or on walls or fences. Molded from high-quality polyethylene plastic with added inhibitors. A unique double wall design allows for the addition of a concealed irrigation chamber. Add the deck bracket to place on any 2x4 or 2x6 wood railing Window Box for a stunning contrast to the vibrant colors of springtime blooms. This nature-inspired design is molded from premium-quality polyethylene plastic with added inhibitors for excellent fade resistance during periods of high intensity sun exposure. Our unique dual wall construction allows for the addition of a sub-irrigation chamber beneath the planting area. Excess water is stored in the reservoir from which plants and flowers can wick moisture whenever necessary. Includes 3 wall mount brackets that are powder coated for exceptional defense. GARDEN DECOR: Decorate your space or start an herb garden with the strong and sturdy yet lightweight construction