The latest addition to the Britax 4-10 year Booster Range! The Kid Guard provides continued safety from first booster use until your child is approx. 135cm in total height - 4 years to 10 years of age (approx.) or when shoulders meet the maximum height markers. With its expandable lower side wings, extendable seat base, Active Head Restraint (AHR) and 9 points adjustable headrest, the Kid Guard grows with your child delivering comfort and safety on the move. Using our patented anti-submarining technology SecureGuard, the Kid Guard offers 4 points of safety, ensuring the adult lap belt is always in an ideal position from shoulder to pelvic bones. With a unique slim design, the Kid Guard easily accommodates 3 across the back. Features: Extended Safety Extendable booster seat with 9 height adjustments and an Upper Height Marker of 542mm (approx.) 4 Points of Safety The SecureGuard anti-submarining device offers 4 points of safety Slim Design Easily accommodates three seats across the back. Tested to Ten Years The Kid Guard Range is the only Booster seat range of its kind tested for use up to ten years! Active Head Restraint (AHR) Simple to use adjustable headrest designed specifically with deep side wings lined with EPS to shield and protect your child’s head in a side impact crash.