This excellent value high back booster is suitable from 4 to 1112 years approx 15kg33lbs 36kg79lbs it has a height adjustable head support with side impact protection the seat is used with the back attached throughout use to give added protection the cover is removable and hand washable features suitable for groups 2 3 from 15 36 kgs around 3 11 years used with adult seat belt to secure child in the car lightweight and easy to move between cars height adjustable head suppo