HIGH QUALITY Lunch box is made of 304 stainless steel and food grade PP material BPAfree healthy and durable We use thicker materials that are not easy to break The top and bottom are very strong DISHWASHER FREEZER SAFE This Stainless Steel tray is removable can be cleaned up easily in the dishwasher The plastic bottom box is freezer safe BPA free another useful function is you can pour in some hot water before you eat to heat the food LEAKPROOF The lid fits tightly to the stainless steel food tray so food does not run from one compartment to another preventing food from mixing PORTION CONTROL 4 compartments Features convenient to store variety food with divided lunch box design portioned perfectly for adult childs appetite durable and easy togo ALL FOOD IN ONE CONTAINER 4 compartments can fully accommodate the nutritional needs for childrens school lunch you can put cutup sandwichessoup pastanoodle green salad wraps chips nuts dried fruit fruit and so on