Nuliie breastmilk storage bags are designed for convenient and hygienic storage of breast milk. These bags feature a unique pour spout design that allows for easy pouring without secondary pollution. The double-zipper and side seal protection ensure that the milk is securely stored without any leakage. Made from food-grade PE+PET material, these bags are 100% BPA-free, ensuring the safety and health of your baby. The bags can stand up or lay flat in the fridge or freezer, making them versatile for both freezing and heating. Each bag includes a label and volume scale for easy marking of name, date, and time, helping you keep track of your milk supply.