Refined e-commerce product photography of a premium stainless steel insulated bento lunch box set on a pale stone surface, including two stackable containers, bamboo lid, sage green silicone sealing band, compact cutlery and a small sauce cup. One container is open to show the empty brushed steel interior, accessories aligned neatly with a linen napkin placed to the side. Landscape 4:3 overhead three-quarter arrangement, sustainable lunchware mood, realistic scale and clean spacing. Materials include satin stainless steel, warm bamboo, silicone, matte ceramic and pale stone. Soft daylight from the left, gentle shadows, crisp material detail, no food labels, no brand marks, no readable text, no watermark, no clutter.