[Permanent insulation and heat - stainless steel inside, PP material outside. Picnic excursion lunch boxes are resistant to insulation and heat [Good insulation effect] - The adopted of the stainless steel food container increases the sealing effect. Insulation persistent and thermal [Quality Material] - The lunch box is made of high quality stainless steel material, which is high strength, rustproof and [Wide range of applications] - Lunch box Lunch box ideal replacement for cold delicacies, cooked food, soup and much more [Wide range of applications] - Lunch box Lunch box ideal replacement for cold delicacies, cooked food, soup and much more [Wide range of applications] - Lunch box Lunch box ideal replacement for cold delicacies, cooked food, soup and much more [Wide range of applications] - Lunch box Lunch box ideal replacement for cold delicacies, cooked food, soup and much more [Wide range of applications] - Lunch box Lunch box ideal replacement for cold delicacies, cooked food, soup and much more Designed with children in mind, our containers are fun, colorful and most importantly, easy replacement for children to open while at school. Sealed silicone enhance the sealing effect. Lid with double handles. Easy to carry. [Portable] - Stainless steel box food container with double handles, easy to carry