Mattresses and Accessories - Drive, Tool Free Adjustable Half Length Bed Rail, 1 Pair : Safe and easy to install, this half rail by Drive Medical was designed specifically to comply as part of the FDA Hospital Bed System Dimensional and Assessment Guidance to Reduce Entrapment. Its width adjusts tool free in 2" increments from 36" to 42" and fits most beds with a steel frame. It is ideal for protection when bed is elevated but not for use with "Pan-Style" bed surfaces. These half rails are constructed of 1" steel and finished in an attractive brown vein.