Who says you can't teach an old BOT new tricks? This next generation sippy cup uses our patented buffer chamber to relieve pressure so that your little can enjoy their favorite warm liquids or thicker drinks like milk. BOT 2.0 also 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 flexible straw, weighted ball and integrated handle, both babies and toddlers will find it easy to sip to the last drop! 9m+; BPA, phthalate, lead, and toxin free; Enjoy warm liquids with the use of the patented buffer chamber; Flip and sip with our original weighted straw technology; Capacity: 10 oz / 295 ml;.