Introduce your little one to sipping like a pro with our Mini Cup + Straw Training System! Perfect for 9 months+, it includes a 4oz portion size and helps toddlers master the 3-Phase Developmental Drinking Method. The soft silicone straw protects developing gums and teeth, while the weighted base and tactile bumps prevent spills. BPA, BPS, PVC, and phthalate free. Dishwasher and microwave safe. Cheers to less mess!