This large hamburger box is made of a microchannel kraft cardboard material, which is totally natural and ecological.Features of this hamburger box:Microchannel cardboard characterized by having a smooth layer and another wavy layer that acts as an air chamber to better preserve hot foods.Brown color typical of kraft carton.Inside of the hamburger box in white color.Safety closure with pre-marked tab to easily open the packaging. Special for take away and delivery.100% ecological materials: boxes biodegradable and compostable. We distribute nationally in deliveries between 24 and 48 hours for all orders placed on school days.