The mothercare Advance XP high back booster car seat is a versatile design for children from approximately 9 months and 11 years old ((9kg/20lbs – 36kg/ 79lbs)Packed with practical and protective features, it has a height adjustable head support with side impact protection, and a luxuriously padded, wide seat with armrests. The mothercare Advance also includes a height adjustable harness which is used by younger children from approx 9 months to 4 years old. Older children can have the harness removed and are secured into the seat using just the cars seat belt.When its time to get in and out of the mothercare Advance XP high back booster car seat the swivelling arm rests make access easy, and the cover is easily removable and hand washable. With our free 'safe fit' service one of our expertly trained store staff will help you choose the right car seat for both your child and your car. They will even show you how to fit your car seat safely and securely.click here to book your car seat fitting appointment