BOT features an innovative straw technology that moves to the liquid whenever the cup is tilted allowing the child to sip to the last drop. The straw follows the liquid. The straw is also soft and easy on your Little Ones mouth. The cup is designed with a simple integrated handle and lid to eliminate lost parts. The handle, lid, and base are made of polypropylene while the straw is made from food-grade silicone and a weighted steel ball. The Bot is BPA & Phthalate free. Little Ones can start using the Zoli Bot from 9 months onwards. Replacement straws are available for the Bot, and you can choose between Green, Orange, Pink or Blue for your Little One.