Why choose Momoczy Silicone Milk Storage Bags?Momcozy is a fast-growing brand focusing on baby feeding and breastfeeding mom nursing. We innovate and offer high-quality mom&baby products in the global market to provide comfort and meet needs.Knob Lid Design - Strong SealMultifunctional Compatible StorageMaterial One-piece Molding - No BreakEasily Pour Milk from Breast Pump,100% Leak-proofThe capacity is 250ml above, the container is marked with a scale, the best-recommended capacity is 250ml, it not bursting the bag during freezing and heating