Easy Squeezy Training: You squeeze, and your child sips: the silicone straw's valve controls the flow, and drinks only touch the food-safe silicone of the cup and straw Designed for Transition from Bottle to Straw: This toddler training cup supports the move from bottle or sippy cup to straw drinking, then continues as an everyday cup once straw sipping is mastered Spill-Proof Straw Valve: The built-in straw valve helps control flow and reduce spills, keeping drinks in the cup and helping protect clothes - and your floors Right Size for Little Hands: Each 7-oz. cup is sized for small hands to hold easily, making it great for babies and toddlers learning to drink independently Dishwasher Safe and Made without BPA: Made with food-safe silicone, these toddler straw cups are top-rack dishwasher safe for quick and easy cleaning