The rail helps prevent falls.Adjustable from 26 to 34 to 42 inches.Supports up to 300 poundsFolding out of the way when not in use or while making your bedCan be used with most traditional and platform beds including Twin, Full, Queen, King, and California King, and with mattresses between 12 to 16 inches thickNot for use with ajustable beds or beds with extra soft mattressesItem appears in new like condition and not used. Original cardboard box has damage, labels removed leaving glue, torn or dented corners, or parts of the box cut or removed.Please note we have several of the same item. All are open box items. The items all appear to be in new like condition and not used. The box you receive may be different than the box pictured. SKU 322