Car Seat: Infant car seat accommodates weights between 5 and 30 pounds (2.2 and 13.6kg.) and heights of 30 inches or less (76.2cm), 5-point safety harness; easy one-hand harness adjustment; and push-button release, 4-position push-button height adjustable base with level indicator for proper installation, Height-adjustable seat back; no harness rethreading, One-hand easy-access seat release, EPS energy-absorbing foam for superior side impact head Protection, Smooth carrying handle, won't scratch your arm, Boot provides extra warmth and comfort, Flex-Loc® refers to the base's flexible (not rigid) latch straps.