DESC: Evenflo Big Kid Booster Seat: A staple of the booster seat world, the Evenflo Big Kid Booster converts from a high back booster to a no-back booster easily. With state legislation forcing children to remain in boosters to 8 years and 80lbs, it is important to have a safe, reliable booster. The Big Kid is reliable because it has all the conveniences of a standard booster. Pivoting armrests make it easy to in and out of the seat. Buckle positioning is a lot easier because of the pivoting armrests as well. Converting from high back to no back is a big deal with boosters. The Evenflo big Kid allows the child to grow with the seat. WHen the child is above 40lbs, it can become backless and make them feel like a grown up.