Nuby's Wide Neck Non-Drip Vari-Flow Bottle helps make bottle feeding a smoother, more natural process. Ideal for everyday use, the Wide Neck Bottle features a Vari-Flo valve that allows baby to control the flow rate during feedings, while nubs on the nipple base massage gums, assisting in the emergence of teeth. A dual-vent anti-colic valve helps to prevent the ingestion of air, which is known to cause colic and fussiness. The soft silicone non-drip nipple is designed to prevent drips and spills making life a little less messy. Made from BPA-free materials for parents' peace of mind, Nuby's Wide Neck Bottles come in a three-pack, so parents will always have a clean bottle at home or on the go!