Come and see our amazing products. The portable magnetized cup milk coffee cup 13oz is made of stainless steel. The automatic mixing cup uses magnetic and fluid self-stirring technology to mix the liquid in the cup, and the beverage can be quickly cooled and shaken by pressing the switch. The operation is very simple. Need to buy two AA batteries to install on the cup. In addition, we welcome customized logos, please contact us. Pls confirm with us about the packing info, stock color and exact production time before placing your order.