Stainless steel insulated lunch box, 0.79-liter capacity, with a 6-hour heat retention effect, and the interior is fluorine-coated and washable. - Brand: Zojirushi - Model Name: Insulated Lunch Box - Capacity: 0.79 liters - Inner Container Material: Stainless steel - Heat Retention: 6 hours - Interior Fluorine Coating: Yes - Body Washable: OK Includes instruction manual. Used a few times by a child in high school. I've used other brands, but I think Zojirushi's heat retention is very good. The box has some dirt and discoloration. The actual item is very clean. It will be sent in simple packaging, just putting it back in the box and securing it with tape. Thank you for looking.