Easy-to-open lid: It is designed with a lid suitable for children, which can be safely covered, but children can easily take it off (leak-proof). Stackable, portable, reusable and affordable way to prepare healthy snacks for school, work or going out. Built-in quantity control: 4 perfect compartments can easily kinds of snacks to satisfy all kinds of appetites from children to adults. Microwave ovens, refrigerators and dishwashers are safe: containers are easy to clean, easy to use and quick to sort out. For best results, do not heat and dry.