This simple-to-use bed rail slides under your mattress to provide a safer and more secure grip to help you get into and out of bed. An attached pouch is great for holding reading materials, remote controls, cellphone, medications and more. It slides up to 43" under your mattress, adjusts easily and has slip-resitant sleeves to help keep it in place. Sturdy chrome plated steel construction disassembles easily for travel. Height adjusts from 17" to 21" and supports up to 300-lbs. Not for use with hospital beds or any other type of adjustable bed. Metal. 24"L x 21'W 2"H.