Material: ABS+Hardware Size: 130*117*23mm Shape: round Color: white, pink, green Pattern Pattern: No Quantity: 1pc Package Content: 1 x USB Heated Coaster 1.This heated insulated coaster can keep the temperature of the water - all day long no matter if the cup is cold or hot water, put it on the coaster to keep the temperature of the water suitable for drinking. 2.Suitable for most cups This coffee cup insulator is suitable for most flat bottomed cups, such as glass cups, stainless steel cups, ceramic cups, milk cartons, metal cups, enameled cups, high temperature plastic cups, glass cups and so on. It is best to use flat-bottomed cups to keep the liquid warm or heat it up for better heating effect. 3. not hot shell Only the glass area will be hot when working, the white shell will not be hot. 4.WARM GIFT This coffee insulated mug is your choice to keep you warm all day long, a good helper to create your life. It is also a popular gift for birthdays, Valentine's Day, New Year and other special occasions.