Munchkin sterilize bags allow you to steam clean bottles, nipples, pacifiers, teethers, small toys and breast pump accessories at home, work or travel. Just fill the bags with feeding items and water, pop them in the microwave, and you're full steam ahead for a hygienic clean! The set includes six bags and each bag can be used up to 30 times. These convenient sterilizing bags come with an easy spot to mark after each steam cycle to help you keep track of how many times you have used them. To keep you safe from burns, each bag contains cool-touch grip for easy handling and a tab opening to allow steam to escape. Baby-safe cleaning should always come This naturally and easily.