This #1 Booster Seat* has 3 modes of use: floor seat, feeding seat with removable tray, and toddler booster. For babies, attach to an adult chair using the included straps and BPA free tray to create a portable chair top high chair. For toddlers, use the seat as a booster that can pull up to the table by removing the tray. In floor mode, you can use the Pop ‘N Sit whenever you need an extra seat - picnics, sporting events, or right at home! The rear storage pocket holds your daily essentials. Folds compactly when not in use and includes a carrying bag with shoulder strap.