. Food grade material: The electric lunch box is made of food grade PP plastic and 304 stainless steel container. It has high heat resistance and meets dietary safety standards. . Portable and easy to clean: The portable microwave oven has a removable 304 stainless steel container, which is easy to clean and dishwasher safe. Reminder: Do not wash the heating base with water and do not pour water into the heating base. Added sealing ring design to prevent liquid leakage in the swinging car environment. . Increase heating speed: The electric lunch box uses a low - power heating cycle to keep the food at the right temperature. It usually takes 15 - 30 minutes to heat the food. Say goodbye to long waiting in line. The portable food warmer electric lunch box can heat healthy and hot lunch boxes. Use PTC energy - saving heating element to prevent overheating. . Large capacity: The electric lunch box has 2 removable containers (inner stainless steel tray and plastic salad box), which can separate different dishes. Capacity is 1.0L. It is easy to take food, vegetables, soup and other food on the go. . Gift choice: If you are worried about how to choose a gift, you can choose the electric heating lunch box to send love to your caring people. It is a good gift for husband, boyfriend, dad and friends.