New Adjustable Bed Rail Center Support SystemDue to increasing demand for a strong center support system capable of attachment to lower height beds, the Hospitality No Sag Center Mattress Support has been developed. It consists of 3 Steel Cross Rails, each with one adjustable Glide equipped leg.AdjustableThe Hospitality No Sag Center Mattress Support is easily adjustable in width and height. It will adjust in Width from 52" up to 77" to fit the following bed sizes: Full, Queen, California King, and King Size. It will adjust in Height from a minimum of 4" up to a maximum of 15".Weight CapacityThe Hospitality No Sag Center Mattress Support passed Static Load Testing of 2,000 pounds. The glide on each of the three adjustable legs is 2" in diameter, assuring good weight distribution while protecting floors and carpeting.Some Assembly RequiredSome assembly is required. Illustrated Assembly Instructions are included as are tools required for assembly. click here.Special NotePlease review the item description and detailed measurements which are provided to ensure this product will work for your application, as center supports are non-returnable.SpecificationsFits These Bed Sizes: Full, Queen, California King, and King SizeAdjustable Height: 4" to 15"Weight Capacity: 2,000 poundsNumber of Adjustable Cross Arms: 3Number of Adjustable Glide Equipped Legs: 3 (one on each cross arm)Rail AttachmentThis center support system may be attached to either wooden bed side rails or metal bed frame rails. Depending on the metal rails to which attachment is to be made, some drilling may be necessary for the attachment.