Description: Durable Material: This children's posture correction seat cushion is made of PP and high memory foam material, which is soft, comfortable, breathable, sturdy, and durable with a long service life.Seat Support: The back support chair has an ergonomic shape, not easy to deform. It fits the curves of the waist, buttocks, and back providing ample support for your back and waist.Features: The sitting posture corrector has a hollow handle and thickened protective rod for breathability and ventilation, maintaining a comfortable sitting environment for you. Its lightweight design makes it convenient to carry around.Wide Application: The chair back support is most suitable for office chairs, computer desks, study rooms, dining rooms, living rooms, sofas, recliners, and outdoors.Ideal Gift: This back support backrest and seat cushion make a great gifts for drivers, programmers students, or anyone who sits for extended periods of time. Specification: Material: PP Size Chart: 31cmx35cmx35cm/12.20inchx13.78inchx13.78inch Package Includes: 1 Sitting Posture Correction Chair Note: Please allow slightly errors due to manual measurement and different monitors.