This box spring is designed for a California king size bed. It features a solid steel sturdy structure, which is robust enough to support up to 3,000 lb. ensuring long-term stability. The assembly process is made hassle-free with clear instructions, allowing you to set it up quickly and easily. It operates silently, so there won't be any disturbing noises to interrupt your sleep. The high-profile design not only looks great but also helps you enjoy a peaceful night. The box spring is covered with high-quality fabric that is compatible with different types of mattresses, such as memory foam or hybrid 1 s. Its specific dimensions are 83.6 in. in length, 71.6 in. in width, and 9 in. in height, making it a perfect fit for California king beds. Material: Metal.