Item Type: Insulated Lunch Box Material: 304 Stainless Steel + Silicone + Plastic Size: Approx. 20 x 14 x 9cm/7.9 x 5.5 x 3.5in Upper Floor Height: 2.5cm: Approx.1.0in Bottom Height: 5cm: Approx. 2.0in Gross Weight: Approx. 538g/19.0oz Heat Preservation Time: About 2h Upper Compartment Capacity of the Inner Tank: 500ml Lower Compartment Capacity of the Inner Tank: 800ml 1、High Quality Material: Food grade 304 stainless steel material, safe to use, please rest assured. It can be easily put into a lunch box, and it is very suitable as a children's food preparation container and lunch box.  2、Double Layer Design: The insulated lunch box has compartments to prevent food from mixing. The light weight and the snap on lid are leak proof, forming a tight seal and easy to open.  3、Reusable: Recyclable, very suitable for controlling portion size and creating new healthy habits. Transparent lid, you can know the contents without opening the lid.  4、Multipurpose: These food storage containers are perfect for keeping herbs, teas and nuts fresh and crispy. Very suitable for outdoor lunches, large salads, hearty sandwiches, some nuts and fruits.  5、Application: Suitable for use as whole meals, sandwiches, salads and snacks to go to work, school or university. Packed lunches, picnics in the park, RVs, cruises, excursions and travel use.