Durable material and large capacity: this lunch box is made of high quality food grade plastic without BPA. 18 x 13 x 13 cm, 1500 ml total for 3 layers. Detachable Design The stainless steel part can keep the temperature of the food for hours, besides, you can easily take off the stainless steel layer according to your needs. LEAKPROOF PERFORMANCE With the silicone sealing ring and 4 locking buckles, you can easily put your favorite foods into this lunch box without any liquid leaking. The bento box is very suitable for working adults. DISHWASHER SAFE WayEee lunch box is perfect for adults who want a healthy and stylish lunch. This bento box can be placed in the dishwasher. Note: the metal material cannot be heated in the microwave/oven, please remove the stainless steel layer before heating.