STRAW CUPS FOR KIDS 18+ MONTHS: Nuby's Thirsty Kids Super Sipper holds up to 14 ounces (415 ml) of milk, juice, or water to keep your little one hydrated at-home or on-the-go NO-SPILL STRAW CUP: The Super Sipper's straw has a silicone valve that helps prevent spills and leaks; The straw cup includes a detachable cap to protect the straw when not in use DESIGNED FOR TODDLERS: The cup features a 360° silicone valve that vents air around the straw to allow for easy drinking; Perfect for little ones just getting the hang of drinking from a straw FUN COLORS AND DESIGNS: This set of two Nuby sippy cups comes in fun, vibrant designs that will delight your little one EASY TO CLEAN: The Thirsty Kids Super Sipper is top-rack dishwasher safe for an easy, convenient cleanup parents will love SAFETY FIRST: Parents can feel safe knowing Nuby products are developed, researched, and manufactured to exceed all government safety regulations and standards