Thanks to its special features, the seat is suitable for children from three years old up to twelve years old. The CYBEX Solution T i-Fix has a minimum usage duration of nine years. The growing child seat is particularly helpful due to its head and shoulder protectors. As soon as the headrest is adjusted in height with one hand, the shoulder pads automatically widen. The seat can be adjusted in height 12 times. This durable car seat offers children high safety. The tiltable headrest of the CYBEX Solution T i-Fix is specially patented; it prevents the child's head from tipping forward when they fall asleep while riding. This not only increases comfort on short and long trips but also enhances safety in the event of an accident, as the child's head is always optimally supported.