You can pour 15 degrees Celsius water into the color changing cup, and the cup's color will change quickly. This product includes a straw and is highly portable, making it easy to carry in a backpack and convenient for drinking water. The cup is made of high-quality plastic and PP material. Cup height is 17.3 cm, mouth diameter is 9.8 cm, and bottom diameter is 6 cm. The water cup has a capacity of 700 ml. This water cup is suitable for travel and ideal for women, men, and students. Item Name: Water Cup Material: PP Capacity: 700 ml Size Details: Mouth Diameter: 9.8 cm / 3.86" (Approx.) Bottom Diameter: 6.0 cm / 2.36" (Approx.) Height: 17.3 cm / 6.81" (Approx.) Notes: The straw and cup lid colors are the same. For the white cup, the straw color will be sent at random. Due to lighting and screen setting differences, the item's color may vary slightly from the pictures. Slight dimensional differences may occur due to manual measurement. Package Includes: 1 x Water Cup