Full/Queen/King Center Support

* STRONG SUPPORT FOR BEDS: Patented X-System keeps bed frame legs vertical and in place, preventing them from sliding out of position. All-steel cross rails combined with heavy-duty super clamp and X Support provide the ultimate in support for your bed, foundation, and bedding. Stronger alternative to bed slats. No more sagging mattress!
* UNIVERSAL FIT: Suitable for Full / Double, Queen, King / Eastern King, and California King size Beds. Works with Mattresses, Box Springs, and Foundations. Compatible with steel, iron, metal, and wood bed frames (bed frame not included).
* EASY TO USE: Clear, uncomplicated instructions are included. Pre-drilled holes allow you to easily secure the cross slats to your bed using the included screws.
ADJUSTABLE HEIGHTS: Easily adjusts for bed heights as low as 6 inches up to 15-1/2"tall.