This low back booster is suitable from 4 to 1112 years approx 15kg33lbs 36kg79lbs the cover is extra padded and the seat has arm rests the cover is removable and hand washable features suitable for group 3 from 15 36 kgs around 4 years 11 years fixes in the car with the use of the 3 point seat belt of the car lightweight easy to carry and fits in most cars dimensions size 41 6cm x 26 6cm x 42 6cm weight 1 76kg