Maxi-Cosi FamilyFix 3 IsoFix Base Use the Maxi-Cosi FamilyFix 3 IsoFixBase with any of the following Maxi-Cosi car seats – Jade, Coral, Pebble Pro i-Size or Pearl Pro 2 i-Size. Perfect for an easy-to-use click + go installation. The FamilyFix3 base enables you to install the toddler car seat in rear-facing mode, for greater protection of your little one\'s head and neck. Experts recommend that your baby travels in the rear-facing position until they grow to 105 cm (approx 4 years). Features • i-Size • Light and sound indicators confirm correct fit • Ergonomic release buttons are easy to access from both sides • Adjustable support leg automatically snaps into correct vertical position • Rear-facing travel capability of up to 4 years for extra head and neck protection • In case of low battery, a signal flashes when the energy level drops below 30% • Use car\'s ISOFIX connectors to install the FamilyFix3 base for Click + go installation