There's nothing sweeter than watching your little one grow and reach new milestones every day. With that in mind, the Nuby 3-stage grow with my bottle to cup set grows with your child from birth to toddler stages. Begin your child's journey with the soft silicone nipple with a built-in anti-colic valve and move gradually to the equally soft silicone spout that has a Vari-Flo valve designed to let your child choose their flow rate. With two different tops and detachable handles, your child will use the same cup as they transition through their drinking development, which makes moving from bottle to cup easier than ever. Mark each exciting achievement as your child grows with Nuby's convenient 3-stage grow with me bottle to cup.