1.Comfortable size and capacity: with dimensions of about 18 x 7.3 cm / 7.09 x 2.87 inches, this cute water bottle is compact and easy to carry. It has a capacity of 400 ml, so you can store more water or other drinks. 2.Cold operation: the milk carton water bottle features a double design with a coolant in between and provides excellent insulation to keep your drinks cold. The coolant is reusable and can be frozen in the zer for 24 hours before use. Once frozen, it can be added to your favorite drink for a refreshing and cool drink. 3.Cute and adorable: this water bottle features a unique and creative milk carton design with adorable patterns that are sure to catch the eyes. It is perfect for summer and is especially suitable for young girls who want to add a touch of fun to their daily routine. 4.Quality material and wide use: this water bottle is made of quality material and is sturdy, smooth and of burr. The thickened bottom ensures stability when placed. It is suitable for different scenarios, including home, office, outdoor summer and even photo shoots.