Quality Material: Posture Corrector for chair is made of high quality PP, soft and comfortable, strong and durable. Chair Waist Support: Posture corrector chair attachment with ergonomic shape fits the curve of the waist, buttocks and legs and provides enough support for your back and waist. Features: Support the waist, relax waist and back, maintain the correct posture at all times and relieve fatigue.Breathable and ventilated to maintain a comfortable sitting environment for you.Convenient portable, lightweight design, easy to take and carry. Wide Application: Chair Back Support is best for office chairs, computer desks, study, dining rooms, living rooms, sofas, reclining chairs, outdoor. Perfect Gifts: Leg Support Posture Correction Back and Seat Cushion is perfect gift for drivers, programmers, students and long sitting people. Specification: Material: PP Polyester Fiber Product Size: 36cmx31cmx31cm/14.17inchx12.20inchx12.20inch Package Includes: 1 Sitting Posture Correction Chair Note: Please allow slightly errors due to manual measurement and different monitors.