For children in Group 1 (approx. 9 months to 4 years or 19.8 - 39.6 pounds). In a unique design. The 5-point belt system with safety lock and central belt-length adjustment provides for improved support. For group 1 children (approx. 9 months to 4 years or 20 to 40 lbs). In the unique Porsche design. The seat can be fastened either via the ISOFIX mountings in the vehicle or with the vehicle safety belt. With multiple adjustable seat positions- height-adjustable headrest and shoulder belts.