KEEP WARM : The Stainless Steel Bento Lunch Box Usually Can Keep Food Warm or Cold For 1-2 Hours.Warm Tips Please note that The Insulated Lunch Bento Box Does Not accept Long Time to Keep Food Warm.FOOD GRADE MATERIAL : High quality food grade stainless steel liner and eco-friendly PP outer, BPA free, toxin free, odorless, shock resistance, corrosion resistance, not rust and super durable.LEAKPROOF LUNCH BOX : Each layer has a separate lid with the sealed silicone ring that prevents the spillage of sauces, salads and soups.PORTABLE & FLEXIBLE : Each layer can be removed to create a lunch box that meets your current requirements. Simply remove or add a layer as required so you can keep food separated and organized.EASY TO CARRY : This leakproof lunch box has a foldable handle and comes , ideal for picnics, camping, gym, travel and is also great for everyday use in the office or school.We are confident that you will love our stylish lunch box. Please enjoy this risk free purchase. Our customer service will respond within 24 hours and provide you a solution for any issue.