The NUK – 10 Oz Grey For Nature Learner Cup easily promotes babys transition from breast or bottle to sippy cup. Made with sustainable materials, the learner cup features a spill-proof soft spout that is gentle on teeth and gums, and it includes an air vent that helps reduce swallowed air. The baby cup also comes with easy-to-grip handles that can be removed as your child grows. These sippy cups are BPA-free and dishwasher-safe. Our 10 oz. learner cups are recommended for ages 9m+. And as part of our NUK for Nature collection, this kids cup comes in 100% recyclable packaging, part of our effort to design a better future for our little ones and their planet.