Small and practical cup warmer made of aluminum, iron. With a minimalist look, this product is good accessory for a drink at home and in the office. The heated coaster keeps your mug warm, can enjoy coffee, tea and other hot beverages slowly. Features -Color:Brown -Material:Aluminium, iron -Size:10.30X10.30X1.70cm/4.05X4.05X0.67in - Power: 5W - Voltage: 5V - Current: 1000mA - Power supply: USB -Note: surface size is about 7.5cm - Safe and convenient to use, not easy to break or deform, reusable and can be applied for longtime. - USB charging, heating with use, safety protection, and reducing the probability of safety accidents. - Low power and low voltage, saves electricity and money, but is fully functional, allowing you to at the perfect temperature in winter. - Designed to keep your hot drinks in a suitable drinking temp, not heat your drink very hot. - Perfect for hot coffee, tea, hot cocoa, milk or even a hot cup of soup. Suitable for a variety of cups. Package list: 1 x Mug Warmer