A convenient item that turns into a one-handled small pot by firmly fixing the handle fastener. On social media, the hashtag '#まるべん' for perfectly round lunch boxes is popular. 'Maruben' literally means a round bento box. It's reputed for being cute and easy to plate when packed in a round-shaped lunch box. This is a surprisingly easy-to-pack stainless steel carry-type lunch box with round valves. It looks super cute, and the filling size is just right for women. The single-tier lunch box transforms into a small pot by extending the metal fittings that secure the lid. You can cook it over direct heat. It can boil water for one person and cook instant noodles and rice, making it a popular outdoor cooker. (※ The handle will get extremely hot, so please be very careful to avoid burns.) It's also great for outdoor activities like camping and barbecues. For ethnic dishes, please use it as a serving bowl. The inorganic all-stainless steel material has a somewhat Showa-era retro vibe with a nostalgic feel, and it also has a functional beauty that is efficient in use. The simple traditional Thai style bento box makes the colors of the rice balls and vegetables stand out even more. The lid is bulging and softly dome-shaped. It gently covers the side dishes without crushing them. To open and close, just snap the holder up and down. It comes with a handle, making it easy to carry. Stainless steel has excellent thermal conductivity, so it maintains its temperature for a long time whether you warm or cool it. In summer, put somen noodles or cold noodles in an insulated bag together with the ice pack. Compared to plastic or gaskets, it leaves no slippery, odory, or stained residue after washing, leaving a clean and refreshing feel. Stainless steel containers, which are resistant to scratches, prevent dirt and bacteria from entering, making hygiene management easier during summer and the rainy season. Another great point is the simple structure without a gasket between the lid and main body, making cleaning easy. The rounded corners thoroughly wash away dirt from the edges without leaving any residue. If you make sure not to tilt it, this simple and very easy-to-use lunch box is available. Please be very careful when carrying the main unit upside down or tilting it to prevent liquid leakage. Also, stainless steel products cannot be used in a microwave oven, so if you do, please transfer them to a microwave-safe container.