Summer is at its worst! If not careful, one would easily dehydrate. When kids are too busy, they can go without water for a whole day. Fatal! A friend recommended these drinking jugs, called Daily 8. The jug can hold1500 ml (51oz) of liquid. I bought these drinking jugs for my nieces. They find it difficult monitor their daily 8. Now with these jugs, it is easy for them to monitor and complete their daily 8.