Peg Perego Viaggio 2-3 Booster Seat - The car seat for older children. The Viaggio 2-3 car seat can be used for a longer period of time than other car seats as it is approved for use from 3 to 12 years (15 - 36 kg). This light and easy to install seat consists simply of a base, and is therefore suitable for older children, who already have the right build to use the car?s seat belts. Viaggio 2-3 can be used in a car in two ways: With the car's 3-point seat belt alone if the car does not have isofix attachment points; alternatively, in addition to the car's seat belt, the car seat can be attached to the isofix attachment points in the seat of the car. Thanks to the connectors, the viaggio 2-3 car seat can be rigidly attached to the vehicle by using the car's isofix attachment points. In this way the car seat is always correctly installed in the car and is perfectly stable even when going round corners and turning! In order to ensure that the belt is positioned securely over the shoulder