The egg Shell ISOFIX Base offers quick, convenient and secure installation for the egg Shell i-Size infant car seat, with the reassurance of indicators to let you know at a glance that everything is correctly positioned and ready to go. Your vehicle requires ISOFIX anchor points to attach this base, which also features an extendable leg and a rebound bar for stability. The egg Shell car seat can also be installed in your car using the adult seatbelt if required.