The Transformer Isofix Car Seat allows you to transform to meet your child's growing stage. The 10 position height adjustable seat is suitable from 9 to 36kg.Converts to stages, Group 0 to 3, Suitable for Group 3 – 22 to 36kg., Built in Isofix Base, Belt tension system, belt guides, lap belt guide, Use from 9kg to 18kg forward facing, Use from 22-36kg as a booster seat, From 9 to 36kg as per European ECE R44/04 regulations. What's in the box x 1 Carseat