This foldable bento lunch box is made of 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 by silicon material also performs great under extreme temperature,a range from -40 degrees Fahrenheit to 428 degrees Fahrenheit.6.18x8.23x2.6 Inch (approximately 20 OZ), big enough even for meal prep containers when unfold it. 6.18" L x 5.23" W x 2.59" H