Boon Nursh Silicone Replacement Pouch is a replacement bottle pouch forBoon Nursh Silicone Pouch Bottle (click here).Boon Nursh Silicone Pouch Bottle is arevolutionary air-free feeding bottle design featuring a 100% silicone pouch that collapses as your little one drinks, squeezing out the nasty gas-inducing air that causes colic.No straws, vents or valves hereso its a snap to clean and assemble. The silicone can even be boiled, sterilized, microwaved, and frozen. INCLUDES: 3 silicone pouches (4oz) only AIR-FREE FEEDING: Silicone pouch collapses as baby drinks, cutting down on the ingestion of air to decrease painful gas, reflux, colic and Burps No complicated straws, valves, or vents that allow air back into the bottle SAFETY OF SILICONE: The only thing your milk comes in contact with is 100% silicone REUSABLE: Silicone pouches are durable and reusable to produce less waste Easy to clean and washable 100% dishwasher safe bottles, can be boiled, microwaved, frozen and sterilized Made without BPA or PVC Click here forBoon Nursh Silicone Pouch Bottle, 4oz. Recommended for 3+ months.