Stretching 76.8 inches along the side of a twin, queen or king bed, this rail stands 28.5 inches above the mattress with its height adjustable up to 40 inches from the floor, and a 9.6 inch base slides under the mattress. The steel frame is padded with anti-collision cotton and covered in 300D oxford cloth, with breathable mesh so you can see the child through it. A 24-position bottom bar adjusts from 0 to 11.5 inches to fit mattresses 2 to 12 inches thick without leaving a gap. Vertical lifting on either side, independently, lets a parent lean in without dropping the whole rail, and a double-lock button guards against accidental release. A storage pocket on the outside holds a bottle, toys or wipes. The gray cover removes for cleaning. Net weight is 8.3 lbs; a fixing post and steel kit are included for embedded, platform and slatted beds.