Our XL Carolina Window Boxes are available in three standard sizes and they include a thick molded coco coir liner. These hayrack planters make a great window or garden wall planter to grow your favorite flowers. These iron wall planters are powder coated in a gloss black finish. Hayrack planters sometimes referred to as a garden wall planter can be installed in minutes and will provide a great gardening space in areas that might otherwise be unuseable. If you have any questions please feel free to contact us on our toll free number at 800-896-0978.