This foldable bento lunch box is non-toxic BPA free, healthy and Eco-friendly,food-grade silicone, soft and indestructible. Also creates a durable bento box for any unexpected drop or crash situations. The bento box made of silicon material also performs great under extreme temperatures, ranging from -40 degrees Fahrenheit to 428 degrees Fahrenheit. So don't worry, just free your hands and give them to the machines. The microwave, freezer, and dishwasher are standing by. 6.18x8.23x2.6 Inch (approximately 20 OZ), big enough even for meal prep containers when unfolding it. But if it's folded up, half of the space will be saved. 1.37 Inch thickness will give your bag a big break.Great partner for everyday life