The Reflo Smart Cup™ is an alternative to sippy cups and a transitional tool for children to learn to drink from an open cup. Insert controls the flow of beverage anywhere along the cup's rim. BPA-free, phthalate-free, dishwasher safe, and no moving parts to trap dirt and germs. Holds up to 6 ounces of pulp-free beverage. Set of four: clear, green, blue, and pink.