The Evenflo Transitions 3 in 1 Combination Seat features an innovative design allowing you to transition the seat between 3 different modes of use. This seat can be used as a harness booster, high back booster, and a no back booster. Sporty style elements appeal to children, as will the integrated cup holders. The seat accommodates children ranging from 22-110 lbs. This combination seat provides an exceptional value for a seat with such a wide support range combined with an array of innovative features.