Bento Oval Lunch Box ~ Stainless Steel Liner ~ Leek Proof ~ Blue Bento Lunch Oval Lunch Box ~ Stainless Steel Liner ~ Leek Proof ~ Blue Bento box container has a vacuum seal lid and foldaway handles for easy carrying. Dishwasher safe - easy to clean so that you can stay efficient and use them again and again. Food Grade Stainless Steel Interior - contains no BPA Sleek modern design