A self-stirring auto mix coffee mug is ideal for the lazy tea or coffee lover. Simply press the handle button to have the cup automatically mix the contents in the mug. There is no need for spoons or stirring straws anymore. Just need 2 x AAA batteries to run the mug. The mug has a 250ml drink holding capacity, 8.8 x 11.8cm dimension, round shape, stainless steel + plastic material, travel lid support, sealed rubber top.