these boxes can be used in a set of 2, 3 or 4 or individually. Each has a lid and a spout. The body is transparent, the bottom and the lid are opaque color. The content of the box is directly poured in the baby bottle by the spout introduced in the neck. The whole is sterilizable and goes in the dishwasher (basket of the top).
Advantage: large capacity and high precision to fill the baby bottle.