This isn't your ordinary sippy cup. BOT features the original SILIFLEX-straw technology that is designed with a weighted ball so the straw always moves to the liquid regardless of the orientation of the cup. With its valve-free flexible straw, weighted ball and integrated handle, both babies and toddlers will find it easy to sip to the last drop. 
9m+
BPA & Phthalate free
SILIFLEX-straw technology
Valve-free
Capacity: 180ml
 
The handle, lid, and base are made of polypropylene while the straw is made from food-grade silicone. The weight at the end of the silicone straw is stainless steel encased in polypropylene.