Stacking Lunch Box - Two Tier Tiffin w/Vacuum Seal Lid, Stainless Steel Interior, and Carrying Handles - BPA Free Stacking Lunch Box - Two Tier Tiffin w/ Vacuum Seal Lid, Stainless Steel Interior, and Carrying Handles Food grade stainless steel interior KEEPS FOOD HOT OR COLD FOR HOURS Airtight vacuum seal prevents leaks. Two layer design allows you to separate your food and snacks Locks securely fasten both compartments together. Great food carrier. Dishwasher and freezer safe