Description: Ergonomic Design: Ergonomic lumbar support cushion for office chair provides back and waist support.Comfort: Our chair back support provide softness and comfort, ensuring a comfortable seating experience.Wide Application: Our posture corrector functions as both a seat cushion and lumbar support.It is suitable for various chairs including office chairs, reading chairs, floor chairs, computer chairs, gaming chairs, car seats, desk chairs, school chairs, sofas and stadium seats.Material: Made from polypropylene polyurethane polyester.Lumbar support posture corrector chair is sturdy for long term use.Ideal Gift: The back support posture correction backrest and seat cushion are ideal gifts for drivers, programmers, officers and sedentary people. Specification: Material: Polypropylene Polyurethane Polyester Size Chart: 40cmx40cmx40cm/15.75inchx15.75inchx15.75inch Package Includes: 1 Ergonomic Back Support Pillow Note: Please allow slightly errors due to manual measurement and different monitors.