Air Protect superior side impact protection for the head. Feel the difference Wicking fabric for your child's comfort Narrow yet comfortable seat with additional padding Easy one handed 5 position headrest adjustment Installation recline for better fitment into most cars 2 swing out cup holders Arm rests for your child's comfort Machine washable covers, harness pads and insert Toddler Mode: To be used in forward facing position with built-in harness from approx. 12 months - 4 years of age or until the child's shoulders reach the middle shoulder height marker. Booster Mode: To be used with a lap-sash seatbelt from approx. 4 - 8 years of age or until the child's shoulders reach the upper shoulder height marker.