DESC: The Safety 1st Summit Deluxe is a booster car seat which features a high back for baby's comfort. This booster seat is a forward facer which can handle a child from 20-100 lbs and 34-52 in. tall. The Safety 1st car seat should be used with a 5 point harness from 20-40 lbs and with the car's belts from 30-100 lbs. It is one of the few models of booster car seat to give multiple installation modes.