2/4 Layers Stainless Steel Lunch Box,Stackable Thermal Bento Boxes for Adults Kids,Portable Food Container for Home PicnicProduct attributesMaterial: Stainless steelOrigin: Chaozhou, ChinaShape: CircularIs it insulated: YesMicrowave oven: not availableStyle: New Chinese StylePattern: Solid colorTarget audience: AdultsProduct Category: Lunch BoxProduct quality level: Qualified productNumber of layers in the box: two layers, four layersFunction: Thermal insulationStyle: Multi layerCategory: Insulated bento box