To book a child seat / baby seat is really simple. After you have choosen your vehicle class you can add a child/baby seat or a booster seat during the second step of the booking. In general you have the following options: Child seat: suitable for toddlers weighing 0-18 kg (approx 0 to 4 years) Booster seat: Suitable for children weighing 15-36 kg (approx 4 to 10 years) All child and baby seats are for free. Please add also the age and the weight of your child/baby into the field “notes for the chauffeur” to make sure he provides an appropriate seat. Please note: it is not possible to book a child seat on arrival. The device needs to be added during the booking.