Wow Gear drinkware uses a special Uni-Flow drinking edge that prevents spills and helps with developing oral and motor coordination to properly drink from a traditional cup. Handles on each side make it easy for little ones to grasp. This drinkware makes for an easy, progressive approach to make the switch while also being FDA food safe and meeting all CPSC standards. They are BPA and Phthalate free, and are made from quality food-grade plastics. They come in a variety of fun and vibrant colors, and are dishwasher and refrigerator safe for easy cleaning and storage.