Steeltainer Leak-proof Stainless Steel Round 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. Capacity: 270 ml or 9 ounces. Dimensions: 114 x 114 x 60 mm (4.5 x 4.5 x 2.375 inches).