For the quickest disinfecting process for breastfeeding accessories, bottles, pacifiers, and more! All you need is a microwave and water, and each bag can be used up to 20 times. They're great for work, travel, and end-of-day cleaning, and are made with no BPA, so they're safe for both moms and babies. You can also use these bags to store everything between pumping sessions. This set comes with 5 reusable bags.