PRESSTOCLOSE TWISTTOOPEN PCTO Hasslefree handling with no spillage one handed closure Patent Pending PRECAUTIONARY DESIGN If the liquid in the bottle is too hot above 70 deg Celsius air pressure will force the fluid out from the sides This works as a precautionary in case the milk is too hot for consumption REMINDER 11OZ BOTTLE COMES WITH FAST FLOW TEATS MULTIFUNCTIONAL FEEDING SYSTEM when the baby no longer needs the bottle the bottle can be transformed into a food container water bottle storage container with our optional accessories sold separately Let our bottle grow with your child bulletpoint LIKE A MOTHERS BREAST MORE NUTRIENTS LESS AIR Air venting bypasses the milk minimizing air bubbles oxidation of nutrients Builtin anticolic air vent reduces air intake Ellipticalshaped silicone teat simulate a latching experience Offcenter teat enables your baby to feed in natural upright position STACKABLE EASY TO CLEAN softsquare design prevents the bottle from rolling away and allows it to be stackable to optimize storage BPA BPS PVC PHTHALATES FREE created with NSF certified PPSU that combines advantages of both glass and plastic material lightweight odor free Shatter resistant and Dishwasher safe top rack only