Desktop Coffee/Tea Mug Warmer - Candle, Wax and Oil Warmer Great for coffee, tea, hot chocolate and other beverages you want to keep warm Low profile design makes it perfect for use in the office, bedroom, kitchen etc Intended for use with ceramic mugs Smooth easy to clean non-stick surface Warmer is 4.5 inches in diameter and 1 inch in height; heating surface is 3 in diameter