Features: -Rigid-UAS; Oobr’s rigid-UAS system makes proper installation effortless and provides greater stability to the booster seat in the event of a collision and hols it in place even when he is not busy -Better positions the seat belt on the child’s hips to improve safety -Confirms that latches are locked with an audible “click” -Quick release system for easy removal -Oobr booster seat raises your child 10 cm/4 in. to improve in-vehicle shoulder belt fit -Magnesium back frame; better contains the torso during a side impact collision and protects against vehicle intrusion -Structural headrest with deep side wings; connects to the magnesium frame using steel rods to reduce twisting movements and improve head protection in a collision -Adjustable headrest for custom fit as your child grows and padded side bolsters allow for comfortable naps -Reclining seat back; helps keep your child safe and comfortable when falling asleep in the car. Slide the seat forward using the Rigid-UAS and the free-pivoting seat back provides up to 12 degrees of recline for sleeping comfort -Soft-touch armrests for added comfort -Detachable cup holder that can be placed on either side of the seat and transported straight to your dishwasher -Fabrics are GREENGUARD Select Certified and provide permanent protection against stains, moisture and odor-causing bacteria -Meets all Federal Motor Vehicle Safety Standards and Canadian Motor Vehicle Safety Standards Recommended child size: 40" to 57" / 101cm to 145cm Recommended child weight: 40lb to 100lb Recommended child age: 4+ years *Limited Lifetime Warranty by Clek