Take the strain out of stirring with the Self-Stirring Mug. No need to grab a teaspoon and stir, simply press the button and all the hard work is done for you. It's the ultimate idle drinking accessory! The Self-Stirring mug is also insulated and comes with a non-spill lid to keep your drink warm for ages, what more can you ask from a mug? It's perfect for tea, coffee, hot chocolate and even most soups. ...... With the press of a button, your drink stirs itself - little whirring disc at the bottom spins and froths - easily blend in your cream and sugar without a spoon - mug with drink through lid included - to clean just pour in soap and press a button to stir - 4 3/8"" h x 3 3/8"" w".