Use the Joolz + Maxi-Cosi Family Fix Base with any of the following Maxi-Cosi car seats (sold separately) - Jade, Coral, Pebble Pro i-Size or Pearl Pro 2 i-Size. Perfect for an easy-to-use click + go installation. The Joolz + Maxi-Cosi Family Fix 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 grows to 105 cm (approx. 4 years). Features: i-Size - (R129) 2 penlights are included Rear-facing travel capability of up to 4 years for extra head + neck protection Light + sound indicators confirm correct fit Ergonomic release buttons are easy to access from both sides Use car?s ISOFIX connectors to install the Joolz + Maxi-Cosi Family Fix Base for Click + go installation Adjustable support leg automatically snaps into correct vertical position In case of low battery, a signal flashes when the energy level drops below 30% Dimensions: We