Compact insulated bento box set, stainless steel, mainly for men, black - Set includes: Stainless steel insulated bento box, 2 polypropylene side dish containers, chopstick case, chopsticks - Color: Black - Materials: Main food container stainless steel, side dish containers polyethylene, polypropylene - Quality: Not dishwasher, dryer, or microwave safe - Size: Outer case length 11cm 　　　　　　　　　width 20cm 　　　　　　　　　height 13cm - Features: Insulated, compact and convenient to carry My child used this until about 5 years ago. I've written the quality as indicated, but I don't think there were any particular inconveniences. The edges of the outer case are slightly scuffed and frayed, and there are stains on the inner tag, but I believe it is still perfectly usable for daily use. Please consider purchasing if you are interested. Thank you for looking.