The Nûby™ 3-Stage Grow Nurser can be used from birth to toddler. This unique feeding system starts as a bottle with the patented variable flow Non-Drip™ Nipple that features anti-colic valves to reduce the risk of colic and teething nubs to massage baby’s gums. The nipple is easy to use and prevents spills and leaks. As your baby begins to develop and grow, the easy grip handles are easily attached so they can start to feed themselves. The soft, silicone No-Spill™ Spout (included) replaces the nipple as your child begins the transition from bottle feeding to cups. No drips! No spills! No mess! All smiles!