MULTIPLE USES - Suitable for storaging other babyfoods, such as juice, vegetable juice, rice paste. Generic wide bottle neck suitable for other accessories of baby products. EASY TO CLEAN - You can use sponge brush or haakaa silicone brush to clean, it is boiled-safe, you can clean it by boiling in water for 2-3 minutes. Dishwasher-safe. SAFE STORAGE / EASY TO USE - Pour breast milk into the bag, stopper the plug, then put in the fridge and freezer. When you want to use it, directly put the milk storage bag in the milk warmer or warm water for heating. PS: please remove the stopper before heating. LEAK-PROOF - Tightly fitting silicone plug, no matter how you shake, grip, turn upside down or swing, it has not a single drop leak, can be stored laying down or standing up, an excellent alternative to disposable milk storage bags. NEW PACKAGE HAAKAA SILICONE BREAST MILK STORAGE BAG - Both the product body and the plug are made of 100% food grade silicone, eco-friendly and BPA-Free. It is heat and cold resistant, can withstand temperatures from -4°F to 392°F. Not easy to break and deform.