... Ml stainless steel bento lunch box keep Warm&Cold for 4~6 hours Bento Lunch Box,Thermal Container,Food Material:Food Grade PP, Stainless Steel, Stainless IronMaterial free ... Hongxu insulation products, it'll also keep soup piping hot. Made from BPA free materials and easy to clean ... are as healthy and fresh as possible.Hot or cold Unbreakable stainless steel interior and Food-Grade PP exterior, Extra ...