This hot stainless plain lazy self stirring mug is specially designed to auto mixing tea, coffee, etc. Just press the button on the handle, it will do self mixing immediately. No spoon any more, quickly stirring cup for both home and office use. Quickly Blends Beverages without the Effort of Shaking or Stirring Main Features: With 350ml large capacity Double insulated ERK 1009 Specification Weight 273 gm Material Stainless Steel Made in China Length 8.8 Cm Width 14.3 Cm Height 11.5 Cm Capacity 350 ML Powered By 2 X AAA Battery ( Not included) Suitable For Camping, Bar, Home, Travelling Please Note Hand Wash Only, Cannot Use The Dishwasher Cannot Be Used In Microwave Ovens