The Sit, Snack and Go 5 mode booster seat by Safety 1st gives parents multiple ways to accommodate their growing child. Smaller children start out with a full seat that includes armrests and tray. As they grow, it’s easy for you to move through the several different modes to best suit the needs of your child. In any mode, the booster folds for easy travel and storage, making it a great seat for parents on the go.