Ergonomic Design: With ergonomic design, the lumbar support can help you correct your sitting posture, effectively support your lumbar to relieve the discomfort of driving or sitting for long time Upgraded Version: The upgrade lumbar support for car use high-elastic straps to adjust the radian from 5.3 to 7 inches, which can fit your lumbar better Comfort and Breathable: The mesh car back support use breathable double-layer mesh, keep your back and waist cool and dry effectively Wide Applicability: With the install belt, the lumbar support for chair is very easy to install. Suit for 99 percent seats, such as car, home, school, office seats, etc RELEASE THE BACK PAIN - the breathable mesh will keep you comfortable. It fits the shape of your spine, and provide support without putting unwanted pressure on any muscle groups. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store