...online Car Seats The Monterey Car Seat is  rated as a booster seat, but  has the additional 5 point  harness to provide support.   This can be supplemented by  the Lateral Support System  shown. The Monterey Car Seat grows  with the user, accomodating  children up to the age of 8-9  years old  A                                            product © Activate 2010   Postural buggies for Kids This is the Monterey Car Seat in the R41 colourway. This is the Monterey Car Seat in the R40 colourway. This also shows the Lateral Trunk support system to provide greater postural stability. This is the 5 point harness for extra support