Product Overview: The Medela Breast Milk Storage Bags provide a safe and practical way to store breast milk while ensuring freshness. Key Features: ‣ Double-zipper closure for leak-proof storage. ‣ Stand-up design for easy filling and pouring. ‣ Pre-sterilized and ready for immediate use. Specifications: ‣ Material: Food-grade, BPA-free plastic. ‣ Size: 180ml capacity.