Come and see our amazing products. Self Stirring Cup Stainless Steel Automatic Mixing for Traveling Morning, Office Men and Women. magnetic auto stirring mug is made of food grade plastic and double wall stainless steel. Free your hands from having to stir beverages by spoon. Now just wait and drink with this mug's advanced technology. Powered by 2 AAA batteries (not included). Do not wash it by dishwasher and do not heat by microwave oven. Pls confirm with us about the packing info, stock color and exact production time before placing your order.