The Philips AVENT Breast Milk Storage Bags offer ultimate protection for your breast milk 6oz/180ml breast milk storage bags. Philips AVENT breast milk storage bags provide safe and secure storage for your precious breast milk. They can be stored in the fridge or freezer and are pre-sterilized for immediate use. Features:* Complete hygiene * Tamper evident seal for complete hygiene * Reinforced seams and dual layer bag * Secure, leak proof double zip * Ease of use * The sturdy design of this bag enables it to be self standing * Wide opening for easy filling and pouring Other benefits * The bag is pre-sterilized for hygienic use and storage * This bag is made out BPA free material