The item is a simple and practical magnetic self-stirring coffee mug, which is made of 304 stainless steel, PP and ABS material for safe to use. It is powered by batteries. Only to push the button to quickly mix and dissolve your coffee or chocolate milk. Features -Color:Coffee -Material:ABS+PP, stainless steel -Size:14.00X13.00X9.00cm/5.50X5.11X3.54in -Battery: 2pcs AAA batteries (Not Included) - mixing cup is made of PP, ABS and 304 stainless steel, the cup body will not your hands. - It is coffee, tea, hot chocolate, milk, protein shakes, lemonade, broth and etc. - Smooth surface and round edges, easy to clean and does not hurt your hands and mouth. - It is not suitable for stirring thick, pasty, oatmeal and other solids that cannot be dissolved quickly. - Sealed mug cover, no need to worry about liquid leaking and splashing. Package list: 1 x automatic magnetic stirring coffee mug