Rize's LE-4 leg extenders for bed frames attach to the legs of a frame to raise the bed up to four inches. Made of sturdy steel, these accessories attach to almost any bed frame leg and foot. Four leg extenders are included. Example photos show different glides that can be used with the leg extender, but glides are not included. If you use adjustable glides with these extenders, you can adjust the height of the bed further.