18 in. Tall outdoor planter are great for shallow to medium root plants and vegetables. U-shaped garden bed is convenient for wheelchair access, providing more growing space with less material costs. Open bottom design provides better drainage, moist organic soil and the metal raised planter is convenient for plant care and warms a prolong growing season. Simply attach the galvanized planter panels in the configuration, no need additional tools. Smooth curled edges, R angles and garden gloves are provided in case of any injury. Made of 22-Gauge 0.8 mm thickness corrugated galvanized steel with multi-layer eco-friendly powder coatings. The large planter box is heavy duty and strong enough to hold soil for decades. Practical garden boxes make a great addition to your outdoor living space. The garden raised bed is a perfect garden decor for home gardeners to decorate your gardens, balconies or patios. Color: Gray.