The Zoli BOT is our best selling sippy cup and features an innovative straw technology that always moves toward the liquid allowing your child to get every last sip of their chosen drink. And with an integrated handle, you never have to worry about lost parts. The handle, lid, and base are made of BPA and Phthalate free polypropylene while the straw is made from food-grade silicone. Designed for children 9+ months. We also have the Zoli BOT replacement straws pack (2 straws + 1 cleaning brush). Just one part of the great line of safe and practical Zoli products.