Chicco Key 2-3 Car Seat The Car Seat Chicco Key 2/3 is suitable from 4 to12 years, and allows you a safe drive with your baby on board. FEATURES: Homologated ECE R44/04 for group 2/3 ( 15 Kg up to 36 Kg) Comfortable and wide seat Ergòs paddings Headrest in breathable fabric Adjustable Safety System: it can be width and height adjusted to 8 positions Height adjustable backrest and headrest 3 position reclining backrest Dimensions: 47 x 46 x 71h cm Dimensions extended: 47 x 46 x 85 h Weight: 5.3 Kg That's not all though! This car seat even has two Isofix fasteners, allowing you to securely attach the car seat to the backseat of your vehicle.