Utsumi Sangyo Stainless Steel Portable Thermos One-Push Vacuum Stainless Steel Bottle 450ml White, Set of 2 0.45 liters Diameter: 6.9cm Height: 24cm Heat retention: 63 degrees Celsius or higher (6 hours) Cold retention: 9 degrees Celsius or lower (6 hours) Although new and unused, these items have been handled by a person, so please understand this before purchasing. Will be shipped in simple packaging.