Material Metal Product Attributes Battery Contains, Magnetic Contains Package Size 135*132*141(1mm); 180*180*210(1mm); 300*200*180(1mm) Overview: Made of food-grade material, safe and healthy, and the inner liner is a closed design and the water will not leak. Automatic stirring function, press the switch and later you can get a full mix of warm coffee. Perfect for use in your home or office, and keep your coffee, tea, or other beverage warm. Lightweight and portable, you can carry it anywhere you want to go. Product information: Product name: Magnetized stirring cup Shell material: ABS Material: 304 food grade stainless steel Capacity: 301-400ml Style: modern and simple Color: white, brown