The disney pixar cars imax sp luxe is a fun and comfortable group 123 high back booster with harness it has a height adjustable head support with side impact protection swivel arm rests for ease of access and a simple recline mechanism for sleeping children it also has individual harness tensionners to ensure that both sides of the harness are tightened correctly there is a removable body support cushion for younger children and it also has chest and buckle pads for comfort and safety the