4 modes of use: rear-facing (5–40 lbs., 19”–40”), forward-facing (30–65 lbs., 34.4”–49”), belt-positioning booster and backless booster (40–100 lbs., 43.4”–52”). Fit 3 car seats across in standard back seats with the slim design Converts to backless booster with just one hand Base features 5-position recline Machine-washable and dryer-safe seat pad and infant inserts Engineered and tested to meet or exceed federal safety standards Meets federal Side Impact standard 10-position headrest and harness adjust without rethreading 2 removable and dishwasher-safe cup holders Actual fit may vary. Not all children will comfortably fit in the seat for the full weight and height ranges listed. Carton Quantity: 1 Each