The Zinus Compack Adjustable Metal Bed Frame, Fits Full to King Sizes is a unique compact steel bed frame that is designed to provide optimum stability and support for any box spring and mattress set. The center bar provides extra support to ensure you have a comfortable, quiet, and solid sleep foundation. The innovative metal bed is more than just "compack"; it is easy to set up and versatile with its adjustability between full, queen, and king sizes. This steel bed frame is a no-tools assembly frame and can set-up in four simple steps and each support bar features a quick lock system. The support legs simply fold out when assembling and are recessed for to help prevent hitting your toes when making the bed. Zinus beds are expertly packed into a box and are backed by a 5-year limited warranty to ensure you sleep soundly.