Our 24 Oz color changing plastic tumbler , coming with lids and straw, is made of food grade PP material, non-toxic and environmentally friendly. It has large capacity for water, coffee, milkshakes, juices, cocktails, coffee, juices, drinks, smoothies, and other beverages. 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. An ideal cup for birthdays, parties, graduations, and special occasions. Spark joy and bring smiles to your family and friends, celebrating life's little wonders together.