This Inflatable BubbleBum Booster Seat is extra practical, as it is fit for 3-in-a-row on the back seat. The booster can be deflated and un-folded for convenient storage in the stretchy bag, which can be carried by both children, parents and adults. It is also easily stowed in a bag or backpack and is the lightest booster seat on the market.This booster is perfect for School- / bus trip, Holidays, Taxis, Rental cars, Grand parents handing over or picking up from kindergarten or school, Carpooling - when children are going with friends or extra friends will fill up your own car and in the cinema, theater og at the restaurant for extra elevation on the chair. Details:Crash testedMeets all ECE-regulations R44/04Meets all US-regulations FMVSS 213Functional equivalent of any rigid booster seatFor kids between 4 -11 years / 15-36 kg / 1.35 mtr.BubbleBum can ONLY be used in a car with an adult standard 3-point seat that has been approved to ECE-regulation 15User guide included in the packaging BubbleBum is safety and crash proved, and meet all DK, ECE and US regulations. The child is placed on the booster seat and then the vehicle seat belt is placed over the bony pelvis area and the shoulder clip are placed on the vehicle seat belt as well.