1. MaterialThe car driver booster seat is made of Air layer fabric with PP cotton padding. It is breathable, soft and comfortable, thick and full, and not easily deformed. 2. SizeThe size of the driver booster seat chair seat cushion is 38x38x12 cm/15x15x4.7 inch, suitable for people of different heights or short people. The car seat booster cushion is compressed. Remove the package and shake it. It will take 24 48 hours to fully expand. 3. Ergonomic designThe middle part has a groove design, which is not easy to slide the buttocks, safe and non slip. Feel the quality car seat cushion to support the legs and back while in the car or sitting at the computer/desktop or at home. 4. Portable multipurposeThe car seat cushion has a built in handle for ease of transport. It can be used as office pillows, rocking chair pads, patio chair pads, outdoor chair pads, dining chair pads, n chair pads, camping chair pads, kitchen chair pads, but also as a recliner cushion, garden mat and a tatami mat.