The bento box set is made of 304 stainless steel and aluminum for long-term use. Suitable for picnics, camping. The bento box can be heated over a fire, allowing you to use it as a skillet to cook delicious meals while camping outdoors. The bento box has a folding handle that allows you to easily fold the handle for storage when not in use, and you can open it to move the bento box around. Bento box size: 17cm x 10cm x 6.5cm/6.69" x 3.94" x 2.56".