... Warm&Cold for 4~6 hours Bento Lunch Box,Thermal Container Material:Food Grade PP, Stainless Steel, Stainless IronMaterial ... , Nitrosamine, Latex, PVC,SGS:Cadmium, Lead safetyCare instructions:Top rack dishwasher safe, hand-washing suggestedDishwasher safe:NoMicrowave Oven Safe ... and Glass tankYes for PP inner tank.insulated lunch container, About package,we can produce as customers' request.. ...