Purpose: Designed to enable mothers to store extra breast milk in the fridge or freezer, ensuring that their baby has a readily available supply of milk without needing supplementary food or liquids. Capacity: Each bag has a capacity of 180ml, providing ample space for storing breast milk. Hygienic Pre-Sealed Design: The bags are hygienically pre-sealed, ensuring the safety and freshness of the stored breast milk. Leak-Proof Double Zipper: The double-walled bags feature a leak-proof double zipper, providing secure freezer storage and minimizing the risk of spills or leaks. Quick Thawing: The flat shape of the bags makes it quick to thaw breast milk when needed, offering convenience for feeding. Space-Saving: Requires less storage space than bottles, making it ideal for maximizing freezer storage capacity. Labeling Area: The bags feature a large area for labeling and dating, making it easy for mothers to keep track of their stock of milk and ensure proper rotation. Quantity: The pack contains 50 breast milk bags, providing a convenient and economical supply for mothers. Overall, Medela's Breast Milk Storage Bags offer a practical and reliable solution for breastfeeding mothers to safely store and manage their breast milk supply. The leak-proof design, space-saving features, and ease of use make them an essential accessory for breastfeeding mothers who need to store expressed milk for their baby's needs.