Heavy Duty 7-Leg Adjustable Metal Queen, Full, Full XL, Twin, Twin XL, Bed Frame With Center Support and Glides Only. * Bed frame with glides are recommended for wood, tile, and other hard surface floors. * Ultimate in strength and durability, quality and structure. * Features solid steel metal Frame that will give excellent support to your mattress and headboard. The Screws that attach the Bed frame to headboard are not included. * Easy Assembly in Less than 10 Minutes. No Additional Tools Required. Please note that the center support bar does not work as a twin size bed.