Stainless steel lunch box with heat-resistant insert. Thanks to the combination of two innovative materials, this lunch box can serve both hot and cold meals. It has a stainless steel base and a silicone compartment for food that can go from fridge or freezer to microwave or oven. We've also added colored soft-touch silicone clips to make opening and closing easier. - The stainless steel bottom of the lunch box is oven safe, but not microwave safe. - 100% waterproof - Dimensions: 17 x 12 x 6 cm / 800 ml capacity