Add bold greenery to any wall or underneath a window using the Mayne Fairfield Window Box. Two recessed panels on the front and back of the item add a classic look, while a stepped top and base bring a sculptured feel to the piece. The innovative sub-irrigation system holds water in the bottom reservoir, encouraging healthy plant growth. Add garden fabric and lightweight filler to the bottom of the unit, helping to prevent potting mix from sullying the water underneath. This adds strength to your root system, while the water reservoir reduces the need for constant watering. The black color adds a timeless look, perfectly highlighting your flowers, and the all-weather polyethylene construction lasts for years. Four notches on the back of the item correspond to the lips of the four included metal brackets, to keep the item mounted securely. Add exciting architecture to your wall with this Fairfield Window Box. Fifteen year limited warranty.