Group 1 - 9-18kg or 20-40lbs, or from approximately 9 months to 4 years old Isofix compatible 2 year guarantee included, upgrade to lifetime when registered with Maxi-Cosi Side Impact Protection for optimum safety The Maxi-Cosi Tobifix uses integrated Isofix anchorages and support for a safe and quick installation solution for busy parents on the go which, when paired with the Side Impact Protection, provides exceedingly high safety for your child. Comes with a range of additional features: For peace of mind there are easy to read colour indicators to ensure that the car seat is installed correctly The harness can be kept out of the way using the integrated harness hooks that keep the harness out of the way, enabling you to place your child quickly and easily in the seat The harness can be pulled to the correct tightness with one hand so that your child is secure and as your child grows the headrest and harness easily adjust together so they are always correctly positioned When it's time for a nap the comfortable recline position can be accessed from the front of the seat Uses 5-point safety harness for a secure fitting 3 recline positions so they can sit upright or in a more laid back position enabling them to sleep in comfort Removable and machine washable cover Please note: Register your Maxi-Cosi car seat with them in just three weeks to receive lifetime warranty with them.