Inside Air is a buffer role.Children are protected from the impacts finer. Backless Booster Car Seat Car Seat is designed to help safely transport your "big kid” in the car. It’s made for children between the ages of 4 to 10, from 15 ~ 36kg. Booster Car Seat helps keep your big kid safe in the car. This backless booster seat is built for comfort with a padded seat and armrests. It's a terrific option to help protect older children and kids who are ready to transition out of a harness booster, but not yet ready to ride with just your vehicle's seat belt. After all, a comfortable passenger is a happy passenger. When you're ready to clean your seat, padded seat cushion, simply remove it and wash it in your washing machine with gentle detergent. Then, all plastic parts of the seat may be cleaned with mild soap and water.