The Sitback Cushion Obusforme Black Jobst Opaque 20 30 mmHg Knee chrome plated brass air release valve 85180 chrome plated brass air release valve with micro threads for precise deflation control Leatherette carrying case with durable nylon zipper Not made with natural rubber latex Assembled inspected and packaged in the U 41 48 * Conforms and supports the lower back promoting muscle relaxation and proper alignment of the back * Built in ventilated lumbar pad provides additional support to the lumbar area * Breathable nylon mesh wrap with adjustable hook and loop front closure holds the belt in place * Lightweight Black * 2 in 1 ergonomic design supports back or seat * Contoured foam to fit your back or seat * Luxurious soft cover for soothing comfort * Use together with any Obusforme backrest support * Use it at home in the car or at the office * Item measures 15Û L x 15 W x 3Û H *