Color Changing Cup With Lid And Straw, Reusable Plastic Cold Water Adult Iced Co About this item COLOR CHANGING CUPS: Add cold water or your favorite iced coffee drinks in these plastic cold tumblers,you will see the funny color changing in these cute cups. TIPS: When the temperature is below 59F, the cup itself will also change color (especially in winter) PERSONALIZE CUPS FOR GIFTS: These reusable plastic cold tumblers come with matte clear blank finish, they are pretty funny for custom cups for gifts and the best cup gifts will make big magic fun for you children and friends 6 FUN PASTEL COLORED CUPS TO SHARE: Colored cups are perfect for your party and travel ,with colorful tumblers everyone can have their own color and have the matching reusable straw, so you can share with your friends and families SPILL-PROOF & EASY TO CLEAN: These plastic cold tumblers are made of BPA-free food-safe grade materials and splash-proof design, you can cool down at the gym or beach with a refreshing smoothie or iced drinks with the cups, these reusable cups are easy to clean and dishwasher safe TRAVEL-FRIENDLY: These clear plastic to-go tumblers are stackable and save space, so they are perfect for your travel, bring them along wherever you go Contains: 1x water cup