This is a powder-type oral rehydration solution that is easy to keep on hand and carry. Expiration date: 2027/2 It's very convenient to be able to insert the stick directly into a plastic bottle! This product is a food for people with illnesses, suitable for replenishing water and electrolytes for those in a dehydrated state due to diarrhea and vomiting caused by infectious gastroenteritis. It is an oral rehydration solution powder approved by the Consumer Affairs Agency as a "specially-approved food for people with illnesses" under the special-purpose food category. There are 19 sticks, each for 500mL, making it easy to use. The flavor is an easy-to-drink citrus flavor. Because it's a powder type, it's convenient for storage and carrying, and you can be prepared when needed. There is no box.