This innovative container set is the best lunch for kids and adults. Made of BPA free silicone, one of the safest materials to store food, it's great for people from all ages. Collapsible to 1/3 the expanded size. The deep container can hold more food than normal lunch box. You can now take all your favorite food to work or school. No more one time plastic food container. Light enough to carry anywhere, such as picnic, company, school, camping, hiking, road-trips, travel, etc.