The KNOXs SMARTSecure System features an indicator window that turns from red to green when the seat is correctly installed. A Multi-Directional Tether and the KNOXs Energy Response Technology provide unparalleled safety and performance. The KNOX is the first child restraint to include Koroyd technology designed to absorb the maximum amount of energy from an impact. Approximately: 1-6 years Infant Insert: 14-25 lbs. Rear-Facing: 14-45 lbs. Forward-Facing: 25-65 lbs. Height: Up to 49" FMVSS 213 MAX WEIGHT OF CHILD (LB) 65 MIN/MAX WEIGHT OF CHILD 14-65 lbs. Our Travel Bag protects your KNOX or ALTA so you can travel with ease. By registering your Travel Bag online, our TravelSafe program covers any damage incurred to your product during air travel. Durable luggage grade fabric protects your KNOX or ALTA during travel Four spinner wheels allow for smooth, rolling transport Collapsible material folds flat for easy storage when not in use Comfortable handles on top and side for rolling or carrying Front luggage tag pocket for quick identification Compatible with KNOX, ALTA