Material: Stainless Steel Feature:Can Hold Water, Milk, Tea, Carbonated, Fruit Acids And Other Beverages. To Effectively Keep The Original Flavor And Nutrition. Also You Can Put Some Ice In It. Ideal For Cyclists, Runners, Hikers, Beach Goers, Picnics, Camping, etc. Size: 20.5cm long x 7cm wide,Top Inner Diameter 2.5cm