For one or two children from birth with the seats provided (up to 15 kg per child). Retractable frame in 1 second, easy folding, adjustable handlebar and large basket. 4 models of car seats are also compatible in two clicks: the car seat Red Castle group 0 RC 2 (up to 9 kg), or the car seats Pebble, Pebble Plus and Cabriofix (up to 13kg).