Reusable 304 Stainless Steel - 18/8(304) stainless steel for brightness, corrosion-resistance, rust-proofing and easy clean up.With 18 OZ / 500ml capacity, this water bottle height 9.06'' / 23cm, bottom diameter 2.56'' / 6.5cm.Food Grade - No chemicals to your drinks, BPA-free, phthalate-free, toxin-free.Aluminium free.Durable reusable and dependable. Can put in fridge, freezer . Easy to fit your cup holders in car and water bottle cage on bike. Perfect for sports, travelling, car driving, indoor or outdoor use. Whether you're commuting, hiking, or at the gym, a reusable water bottle is a handy way of ensuring you get enough water throughout the day while not wasting any plastic.Leak Proof & Sweat Free - Anti-skip body, scratching resistance, no fingerprint left on the cup body. About how to clean these vacuum flask, use hand with long brush or vinegar or baking soda all works.Double-wall Technology - Reusable thermos consist of cooper and vacuum two layers for better maintaining temperature.Double-walled vacuum insulated stainless steel container insulates heat for up to 6 hours and isolates cold for about 6 hours.100% Service Guarantee - If KING DO WAY Water Bottle you received is not in perfect condition, welcome to message us"}]