This is a stainless steel insulated lunch box. I purchased it for 3,960 yen (tax included). - Brand: Subhiro Mori - Color: Navy blue body, gray lid - Type: Insulated lunch box - Accessories: Compartment container, lid - Materials: Stainless steel, plastic I used it only once, but haven't had a chance to use it since. There appears to be some staining on the stainless steel part inside, which doesn't come off even after washing. Please refrain from purchasing if you are concerned about this.