The Memory Foam Lumbar Support Backrest, model 7154BL, is a foam back support cushion designed for use to provide back support while sitting in a chair. This lumbar roll offers direct support for the lower back region. The cushion's polyurethane foam adapts to the natural contours of the user's back. It has adjustable straps to fit any chair. DIMENSIONS (HxDxW): 6.75 x 3.75 x 14.5 inches. WEIGHT: 2 pounds. COLOR: Black.