RX-93ff ν Gundam stainless steel insulated bottle. I purchased this at the Gundam Base, but I'm selling it because I haven't had a chance to use it. Thank you. This is a new, unopened item. If there are any initial defects, please contact the manufacturer. 420ml Heat retention: 88°C or higher (1 hour), 66°C or higher (6 hours) Cold retention: 9°C or lower (6 hours) Teflon processing Double-walled vacuum construction