Keep your precious little one safe and comfortable with the Summer Infant 3-in-1 Support Seat. This seats grows as you baby does with multiple feeding stages. Stage one acts as a seat positioner with soft foam insert to help younger children learn to sit. Stage two transforms the seat into a booster seat with a tray and toddler support. Stage three acts as a booster seat without a tray for older toddlers. Why Buy Me? Multi-stage seat positioner Removable soft foam insert Chair straps included Removable, dishwasher safe tray Added comfort padded foam seat