- Slim lunch box to carry easily, made of food grade plastic and stainless steel - Polycarbonate lid and locks are unbreakable with regular use and ensure durability for years - Includes an air tight SS container - Silicon air vent to open easily when filled with hot food - Insulated with PU foam to keep food hot for upto 3-4 hours - Rigorously tested to ensure it is free of Bisphenol A (BPA) and plasticizers - Made of 100% food-grade plastic and 304 grade steel