The Kiddy Smartfix is designed to easily adjust along three dimensions – height, width and depth - to perfectly fit a growing child, no matter what their age. With its 14 unique height and width adjustments and three leg support settings, the Kiddy Smartfix can expand to become 9 cm wider, 15 cm taller and 6 cm deeper to offer the perfect fit every time! So even larger children, up to 150 cm tall, should never feel uncomfortable especially on longer journeys. The child will always sit securely and comfortably in an ergonomically correct position. The Kiddy Smartfix uses ISOFIX connectors to provide a secure attachment to the car. High performance impact-absorbing materials are built into the head and shoulder areas to protect the child.