500ml Product Description: Drink the right amount at the right time! Stay properly hydrated. [About 60% of the human body is water] When you hydrate, the water is absorbed into your body, travels throughout your body via blood flow, etc., and performs various functions such as transporting nutrients! It plays an important role in the body. [Know when to drink!] Comes with a time marker that tells you the daily目安 of when and how much to drink ◎ Prevents you from forgetting to drink and easily measures your water intake!