Steeltainer 5 Compartment Lunch Container (White) Reusable, durable and leak-proof. BPA and Phthalate free. 100% recyclable. Interior Material: Food grade #304 stainless steel. Outside Material: Durable polypropylene (#5) shell. Silicon seal prevents leaks. Easy clip on see-through lid. Freezer and top rack dishwasher safe. Not suitable for use in microwaves or ovens. Dimensions: 260 x 190 x 25 mm ( 10.25 x 7.5 x 2 inches ).