This ergonomic lumbar back support relieves back stress and attaches to seat with elastic strap. Improve posture, spinal stability and large massage pad helps reduce back tension. It is made of flexible mesh fabric for constant airflow with lightweight but durable steel frame. It is perfect for car, home and office. (Color: Black with Gray Trim; Dimension: 15.55 x 18.11 x 3.95 Inches)