Aspire More is a booster seat suitable for children aged between approximately 4 and 8 years old. Aspire features an adjustable, locking headrest which enables the seat to grow with your child. This child restraint uses the vehicles adult lap & sash belt. It also features a top tether strap for simple installation. Aspire is the tallest Booster Seat on the Australian market, seating children up to a seated shoulder height of 57cm.