Used four Lansinoh glass breastmilk storage bottles -4oz/ 120ml each -Fits most breast pumps -Two-part airtight, leak proof closure -universal top -four ounce fill Comes from a smoke free and pet friendly home. Pets are not around the items that I sell. I will be taking them out of the box to wrap them better to get to you safer. I do not want them to break on the way to you. Thank you