ZenXin Large Capacity 2 Tier Vacuum Stainless Steel Lunch Box with Handle Thermos for Food Container/Bento Exquisite Gifts (88-Ounce(2.6L)) 1. the product uses food grade materials, safe, non-toxic, tasteless, health. 2.since the lid buckle design, built-in rubber seal ring, engaging in close and arched handle for carrying ease. 3. Do not use this product placed directly in the microwave. 4.With handle design ,more easy to carry 5.2 tier double wall benton box ,keep food warm for long time