The Rize Insta-Lock bed frame series is made from steel to be strong and durable. This bedframe provides long-lasting durability and a secure fit for box springs. Because no tools are needed for assembly, setup is fast and easy. Adjusts to fit Queen, King, or California King beds. Includes a single center rail and six legs with either 6-glides or 4-casters and 2-glides for mobility and stability.