Medela’s convenient Quick Clean Micro-Steam bags quickly eliminate 99.9% of all harmful germs and bacteria mostly found on breast bump and feeding accessories. Easily carried in your diaper bag or purse, Medela’s compact, fast and easy to use Quick CleanTM Micro-SteamTM bags are great to clean and disinfect your breast milk bottles, nipples, pacifiers, breast shields and breast pump accessories at home and on the go. Simply rinse your accessories, place them in a Medela Quick CleanTM Micro-SteamTM bag, add water and microwave for approximately 3 minutes. Voila, the parts are effectively sanitized and ready to go! You can now rest in peace knowing that your baby’s accessories are clean and free from any harmful bacteria. For hygienic reasons, this item cannot be returned once opened.