This adjustable bed frame is an all-steel support system that provides a sturdy, comfortable foundation for sleeping. You'll enjoy excellent support for your back, legs, hips and spine. The steel bed frame features versatile, easy-to-use brackets that connect to bolt-on headboards and footboards, allowing for easy set up. It can also be used to convert a baby crib into a full-sized bed. The Twin and Full bed frames include four legs with adjustable steel gleam glides, as well as the King and Queen bed frames, which include six legs and a center bar for extra support. The adjustable bed frame features a no-tools design and key-slot cross arms for hassle-free assembly.