Isofix mounted child car seat base44 designed to accept the pebble and the pearl car seats this base will allow you to easily fit the pebble 0 baby car seat and the stage 1 pearl child car seat from maxi cosi on to the isofix fitting in your car the familyfix base is fitted to the car using the isofix points found in many modern cars these isofix fittings are integral to the build of the car44 the hooks are attached to the car chassis44 when the family fix base is attached to the