Thank you for viewing. This is a set of two tumblers: one with thermal insulation and cooling functions, and one thermos. ① Stainless steel double-walled vacuum tumbler - Capacity: 450ml (full) - Cooling effect: 7°C or less (1 hour) - Heat retention: 50°C or more (1 hour) - Brand: OCEAN & TEREE - Material: Stainless steel (acrylic resin coating) ② Stainless steel portable thermos - Capacity: 120ml (full) - Heat retention: 44°C or more (6 hours) - Cooling effect: 12°C or less (6 hours) For details, please refer to (photo 3) You can put coffee bought from a convenience store directly in it, and the vacuum insulation structure keeps the temperature. The outside doesn't condense, so it can be used in the office. (See photo 4) I received this as a gift, but I haven't used it and have kept it at home. It's new and unused. The outer box has some tears and stains. (See photo 5) The black band seems to be removable, as far as I can see. It will be shipped in simple packaging. The box will be wrapped in bubble wrap before shipping. Only those who understand this, please.