5 Pack Color Changing Blank 24 Oz Reusable Plastic Cold Cup With Straw And Lid. ECO-FRIENDLY BPA-FREE - Made of high-grade 100% BPA-free PP material which is lightweight and extra durable. Our fun and practical party cup with built-in straw and lid is colorful, completely BPA-free and virtually eliminates the need for disposable plastic water bottles. Make your party unique and environmental friendly with this deluxe and reusable clear summer coffee tumblers. Good ideal for DIY juice. COLOR CHANGING CUPS - Set of 5 cold tumblers packed / 24 oz each, these cups come with a magical color changing feature! You will find it change colors magically when you add your favorite cold beverage or ice under temperature below 41 degrees F. PERFECT FOR ANY OCCASION - Featured with color changing and good-looking, this travel mug will definitely catch everyone' eyes and is aesthetically pleasing for tropical vacation photos, poolside glamour shots, and family barbecues or travel outdoor. Just enjoy your colorful holiday and upcoming summer with it! CUSTOMIZABLE FOR YOU ?- This reusable mug comes in 5 colors with a clear, blank body and is also available in a fully customizable option. Perfect for customizing to your style for all events, including birthdays, parties, weddings or just gifts for family and friends!