1. Material SizeCushion car seat height size is 383810cm/ 15154inch. Adult booster chair cushion effectively increase the field of drivers view by about 12cm/ 4.7inch. Car driver booster seat made of air layer fabric, PP cotton padding, breathable soft and comfortable, thick and full, not easily deformed. The car seat booster cushion is Shipped Compressed. Remove the package and shake it. It will take 24 48 hours to fully expand 2. Ergonomic design The middle part groove design is not easy to slide the buttocks non slip; Feel the high quality car seat cushion to support the legs and back while in the car or sitting at the computer/ desktop or at home. When driving, the height is too low to see the line of sight. Car booster seat adult/car seat cushions for short people can help you broaden your horizons, clearly see the road conditions; 3. multipurposethe car seat cushion built in Handle for ease of transport, can be used as office pillows, rocking chair pad, patio chair pad, outdoor chair pad, dining chair pad, lawn chair pad, camping chair pad, kitchen chair pad, but also as a recliner cushion garden mat and a tatami mat. 4. Relieve fatigueergonomic car seat cushion. It can help support your lower back, reduce stress, relieve back fatigue, and provide you with a sense of comfort. The car seat cushion is very suitable for people who need to drive for a long time.