Preserving: Keeps beverages heated for 3-4 hours at a time. Easy to clean: Wash lightly with soap and warm water. Mug: Grab yourself a self stirring mug. Convenient: No longer will you have to mix your drinks - ideal for the office, school home and more! Colour options: Choose from 4 colours - white, black, pink or yellow. | Self Stirring Mug - Black | Wowcher