Color Changing Cups: When you put your favorite cold drinks and ice cubes in these cold plastic cups, a magical color change will happen with these cold cups. Tips: Pour ice cubes and normal temperature drinks into the cups and the color will change, the temperature below 57 F will also change the color of the cup (especially in winter). 7 Fun Pastel Colors: Large color changing tumbler and tumbler with lid and straws, the best gift for your kids, family and friends, also perfect for your party. Of course, color coding is a great way to prevent someone from seeing your drink and a must for people with allergies. DIY your bag: colorful cups, lids and straws allow you to freely combine them according to what you want, and you can stick your favorite vinyl stickers on these color changing reusable cups. SPLASH PROOF & EASY CLEAN: These 24 oz reusable cups are made from food grade materials that are BPA free and easy to clean, although these reusable cups are safe in the dishwasher. Please cover the lid with a little force so that it is protected against splashing water. Comfortable Design: With these cups with lids and straws, the cups and the lid are stackable to save space, so you can take it anywhere with you while you play. Package: 1pc Random Color