Add the final touch to the outside of your home with our Black Tone Galvanized Metal Window Boxes. These units are treated for outdoor use by using a two-step process. First, we use metal that has been coated in zinc to help prevent rust. After we hand craft the container, it is then powder-coated to ensure long lasting color and resistance to rain and watering. These strong, resilient products can also double as a liner in our wrought iron or aluminum cages, offering color contrast and an even more striking window box. This liner measures 24" in length, 8" wide and 8.5" in height, and comes with pre-drilled drainage holes. Reservoirs can be added (BXI-WW-TAP-21) to extend watering lead times. Custom sizes available by calling 888-327-4462.