Custom Accessories 19563 Grey Seat Cushion (Lumbar Therapeutic) Grey therapeutic seat cushion adds comfort and reduces fatigue making it especially useful for long drives in your vehicle Built in lumbar supports your lower back on long drives Therapeutic seat cushion is designed to eliminate pain in your lower back and legs making long distance driving more enjoyable Simply place the cushion on the seat for installation The massaging bubbles apply relaxing pressure to specific points in the lower back, spine and legs