This 2-Stage belt-positioning booster seat pairs superior safety with a stylish DESIGN. It easily converts from a high back booster to a backless booster, so your child rides safer, longer. 2 layers of side impact protection include an energy-absorbing shell and foam-lined headrest that surround your child's head, neck, and torso. Quickly and easily position the vehicle seat belt using the color-coded belt guides. The 10-position, quick-adjust headrest grows with your child up to 63", and 2 dishwasher-safe cup holders keep drinks & snacks within reach. With plush, foam padding & Built-in arm rests, your big kid will enjoy the ride. And, this seat conveniently fits across in most vehicles, while still providing spacious comfort.