The PRESTO® Bed Frame provides style and durability. Bed frames have remained basically unchanged for thousands of years. But the world is about to change, thanks to the revolutionary PRESTO® Bed Frame. The stylish and exceptionally strong PRESTO® Bed Frame goes from a 4-foot box to a bed like magic. It assembles in less than one minute and adjusts in seconds from Full to Queen to King to Cal King, making this a frame a simple and practical mattress support system.