Keep your morning cup of coffee hot through the afternoon and keep your devices going too with this heated coaster with four USB charging ports. Made of aluminum alloy, this 4.2″ x 3.6″ x 0.8″ device keeps ceramic, metal and other heat conducting materials hot. Includes a USB power cord to connect to your computer, laptop or charging station. Add your logo or message to customize, Orders of 10,000 pieces or greater are eligible for sea shipping.