The trough planter is designed for gardening flowers, veggies and herbs in a narrow area. Its sleek 3 ft. x1 ft. size and clean bottom make for the perfectly versatile indoor and outdoor planter. An elegant decoration that allows practical flexibilities for today's gardener. Also ideal for using as a space divider, with multi sets of different heights set inline. Caster wheels can be assembled for additional mobility. The set of 4 caster wheels makes the elevated garden bed mobile and easy to maneuver around your space. High quality PU wheels move quietly and sturdily, while protecting your hard flooring from scratching. The Trellis provides extra functions to your garden beds and planter boxes. The heavy-duty steel brackets and galvanized and powder coated steel ensure a strong and durable frame that can last more than 5-years. Color: Grey. Material: Composite.