Keep your breastpump sterilized with the Medela Quick Clean Micro-Steam Bags. The pack contains 5 bags which can be used up to 100 times. These bags are perfect for sterilizing all kinds of baby feeding equipment, including breastpump parts, bottles, and nipples. The Medela Quick Clean Micro-Steam Bags are easy to use and provide a quick and effective way of sterilizing your feeding equipment. Simply add a small amount of water to the bag, place your equipment inside, and microwave for the recommended time. These bags are perfect for busy moms who want to ensure that their baby's feeding equipment is always clean and safe to use.