I bought this for my 10 year old son who doesn't like sandwiches but loves pasta, stir fries etc. So now I can give him lunches that he will eat and enjoy. The flask is a perfect size and doesn't leak and is easy to wash. I filled it at 8am and lunch was at 1pm and was still hot. Just right for my son. Excellent product. I buy the portion sets also as they are great for smaller snacks in the lunch box.