Check the listing for details. Nihfien Adjustable Height Bed Support Leg 8-14.5 Inch, Universal Queen/King/C.... Condition: New. Listed at 16.89 USD. The bed legs can be mounted on steel bed beams, wood bed beams, wood slats, etc. It can be adjusted by rotating the base, its simple structure makes it easy to install. EASY INSTALLATION: The height of the bed legs can be adjusted by rotating the base, its simple structure makes it easy to install.