Are you search of a professional and convenient coffee cup warmer? Our cup warmers can surely satisfy your demands. Using plastic materials, light, safe and can support long term to use. Our insulated warmer keep your mugs warm, neither too cold nor too hot. USB charging is very convenient, save your time and efforts. Features - Color: white. - Material: plastic. - Size: 16.00X12.00X3.00cm/ 6.29X4.72X1.18inch. - Rated power: 16W. - Rated voltage: 220V. - Power supply method: USB. - Perfect for hot tea, coffee, , milk or even soup, multi-functional and universal. - Keep the liquid in proper temperature, neither too cold nor too hot, very practical to use. - Using plastic materials, light, this coffee mug warmer is safe and can support long term to use. - USB charging, heating with use, safety protection, not easy to deform or break, you can use rest assured. - Low power, fully functional, enables you to at the perfect temperature even in cold winter. Package list: 1 warmer