<p>The revolutionary X-System center support system is designed to be easily installed and help support your Full, Queen, King, or California King sized bed. Using the included legs, you can assemble this support system to adjust from heights as low as 6-1/2 inches, all the way up to 15-1/2 inches in height (measured from the floor to where the bottom of the box spring rests.) </p> <p> There are no complicated instructions to follow when installing this center support (although there are instructions in the box, just in case.) Using the unique "Gripper" Super Clamp, you easily attach the pieces together to create a heavy-duty support system. The Positive-Locking leg design actually gets stronger when you apply the weight of the bed, with super strength to give you peace of mind. Since the three cross rails are all connected, this support stays in place over time.</p> <p>This unique center support system provides superior coverage under your bed to evenly support the box spring and mattress. The revolutionary X-System design creates a special synergy which adds an extra dimension of supoprt to protect your bed and bedding, so you can protect your bedding investment and ensure a great nights' sleep.</p> <p>The legs of this support are easily adjustable to allow a wide range of height, accommodating almost any bed configuration. The support system also adjusts in width to fit Full, Queen, King, and California King sized beds.</p> <p>The X-System Adjustable Center Support System is designed for use with both Wooden and Metal side rails, and is a great way to ensure your rails will not bend or break. The cross slats of this system have pre-drilled holes in the ends where they overlap your side rails, and are easily secured to the bed using the included screws. This ensures your center support system will not move around, and also protects your side rails from bowing or bending. </p>