The NUK Large Learner Cup easily promotes baby's transition from breast or bottle to sippy cup. This large 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 toddler cup also comes with easy-to-grip, removable handles that your growing child will love. NUK Large Learner Cups are made of crystal-clear Tritan® material, and are BPA-free and dishwasher-safe. Our 10-oz. learner cups are recommended for babies and toddlers 8 months and older.