Description: Durable Material: Posture Corrector for chair is made of polypropylene and high density sponge, 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 carryApplication: Chair Back Support is best for office chairs, computer desks, study, dining rooms, living rooms, sofas, reclining chairs, outdoor.Gifts:leg Support Posture Correction Back and Seat Cushion is suitable gift for drivers, programmers, students and long sitting people. Specification: Material:Polypropylene Size Chart: 31cmx31cmx36cm/12.20inchx12.20inchx14.17inch Package Includes: 1x Chair Posture Corrector Note: Please allow slightly errors due to manual measurement and different monitors.