... double-wall Long lasting heat preservation effect-8hours 115L Insulated Food Container with power for hot SpecificationModel: X08 External Dim: ... piece seamless polyethylene outer shell, filled with thick polyurethane foam.8) Food grade LLDPE, non toxic, UV resistant, non-fading.9 ... seamless construction, have no seams to fail, leak-proof.3) Food grade LLDPE material, non-toxic, UV resistant, both hot ...