1、Independent Layering: Independent layering does not cause odor, good vacuum insulation performance, easy opening and operation, easy disassembly and cleaning, and more convenient to carry with a strap. 2、Temperature Locking Technology: Lunch box adopts temperature locking technology, 6 layer thermal insulation structure, which improves the thermal insulation effect. In actual use, the thermal insulation time is about 6 hours (warm meals) ‑ 8 hours (scalding hot porridge) 3、Vacuum Technology: Lunch box adopts high temperature tailless vacuuming technology, high temperature vacuuming environment, prolonging the vacuuming time, vacuuming the vacuum layer, and realizing long term heat preservation. 4、304 Stainless Steel: The inner bowl of the Insulated lunch box is made of 304 stainless steel, and the surface is treated with anodized electropolishing to make it easier to clean, reduce heat convection, and effectively improve the thermal insulation effect. 5、PP Material: The Insulated lunch box is made of PP material, which is safe and has no peculiar smell. It can directly hold food and has a double layer separation design. 1 x Insulated Lunch Containers2 x Lunch Box1 x Strap1 x Carrying Handle Item Type: Insulated Lunch ContainersMaterial: 304 Stainless Steel, PPWeight: Approx. 1200g / 42.3ozSize: Approx. 19cm / 7.5in, Approx. 15.6cm / 6.1in, Approx. 5cm / 2.0in, Approx. 7cm / 2.8in, Approx. 11.7cm / 4.6inCapacity: 1.9L