16OZ Cold Colored Changing Tumbler Cups for Kids

Made of BPA-free food-safe grade materials. Just add cold water or your favorite iced drinking in these plastic cold tumblers,you will see funny color-changing in these cold cups. Tumblers and color changing cups with lids and straws are the best gifts for your kids, families and friends; and you can personalize tumbler cups by adding your logo on tumblers bulk as the fun gifts for kids.