The maxi cosi pebble plus is a baby car seat with excellent safety performance rating complying with i size r129 car seat legislation which demands a higher level of crash testing and offers the highest level of protection available suitable from birth to 75 cm approx 1 year this i size car seat is part of the maxi cosi 2wayfamily collection offering up to 4 years of rearward facing travel and improved head and neck protection for your child in the event of an accident maxi cosi pebble