Home.Co - Bed SupportGREAT STRENGTH: GOODLAN portable bed rails have a larger and longer chassis area than other bed rails products, the tube wall is thicker, stronger when used by the elderly, Also prevents people from falling out of bed,and the non slip foam provides better friction between the mattress and the box spring . The seat belt is bound to the other side of the bed and will be more firm HEIGHT ADJUSTABLE: The GOODLAN Bed Assist Rails are height adjustable from