This item is a small and practical cup warmer made of high-quality materials. With a clean look, this product is the accessory for a drink at home and in the office. The heated coaster keeps your mug warm so you can enjoy your coffee, tea and other hot beverages slowly. Features Colour: Black. Material: Tempered glass and ABS. Size: about 11.50X11.50X2 .00cm/4.52X4.52X0.79inch. Switch Mode: Gravity Sensing. Power: 16W. Power cord length: 87cm.- Power supply: USB. - Tips: The temperature of the USB model is only about 50 degrees. Made of high-quality materials, durable and long-term use. - This mug keeps coffee, milk, water and other beverages at the right temperature all day long - Fine workmanship, not easy to wear, very practical to use. - Simple in design but very practical to use. This USB cup warmer can be used in home, office and more. Category: Coasters Size: 11.5x11.5cm Color: Black Note: This product does not include cups