The ferrari imax sp luxe is a comfortable and stylish group 123 high back booster with harness this official ferrari car seat 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 tensioners 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 com