Portable and convenient food storage container warms and reheats food without the use of a microwave for delicious leftovers. Evenly cooks or reheats fresh or frozen meals and dishes in about an hour without burning or drying out your food. Compatible with most flat-bottom, sealable containers including glass, plastic, Tupperware, metal, aluminum, foil, and cardboard. Accommodates containers up to 6.75 inches long by 8.75 inches wide by 2.5 inches high or 1.50 quarts of food. Requires no monitoring, just place your meal inside, plug it in, and go about your day and enjoy your meal when you are ready. Material: Polyester.