The rway sp zebre is a stylish and fun group 2 3 high back booster without harness and is suitable for children between 15kg33lbs 36kg79lbs approx 4 years to 11 years it has a height adjustable head support with side impact protection swivel armrests for ease of accedss particularly useful in smaller cars and a simple recline mechanism to help stop sleeping children from falling forwards the seat cover has extra padding and there is an extra head cushion for comfort and safety