Lansinoh 100ct Breastmilk Storage Bags are the #1 selling breastmilk storage bag, specially designed for convenient and safe storage and freezing of breastmilk. The Lansinoh 100ct Breastmilk Storage Bags features: * Leak-proof * Double zipper seal * Strongest bag available * Pre-sterilized medical grade milk storage bags * Tissue Pack Dispenser for easy access and storage * 100% Bisphenol-A (BPA) Free