About this item [Portable Food Warmer Box]: This food warmer heater has 2 kinds power adapters: 110V-240V household, 12V cars. It also includes a variety of exquisite accessories, so whether you are in the office, on the car, or working outside, you can always enjoy a delicious and warm lunch. Heated Lunch Boxes for Adults Kids [High-quality and Safe Material]: The electric lunch box is made of food grade Ceramics/304 stainless steel +PP material, and the bottom of the food heater lunch box is designed with aluminum plate, 360° heating cycle, 304 stainless steel/Ceramics inner tank, uniform heat conduction, fast heating speed, no peculiar smell. The outer shell is food-grade safe plastic, so you can use it with confidence. [Leak Proofing]: Improved cover design, the cover will not move during use, more tightly covered. Because leak-proof seal ring design is added, it improves the defect of food leakage. Prevent fluid leakage in sloshing car environments. [Removable and Easy to Clean]: Food Warmer Lunch Box, The stainless steel lunch box can be easily taken out for cleaning, and the stainless steel lunch box can be placed in the dishwasher. Please note: do not get liquid on the bottom of the lunch box to avoid short circuit. [Our business philosophy]: quality and customers always be in the first place, continuous innovation, and constantly bring high quality new products to customers.