Child car seats The booster seat is the last car seat a child needs. BeSafe high back booster seats are recommended from approx. 4 to 12 years. The seats are approved from 15 to 36 kg or 100 to 150 cm, depending on the regulation. Cybex Solution Z-fix Plus ฿14,600.00 BeSafe iZi Up X3 Fix ฿10,960.00