This is a white coffee coaster that can heat up to 55°C (131°F). ☆ Brand: YoLin ☆ Color: White ☆ Function: Coffee coaster ☆ Temperature setting: Up to 55°C (131°F) ☆ Keeps drinks like water, tea, coffee, and milk warm all day long, even in the cold winter. ☆ Gravity sensor, automatically turns on/off ☆ You can enjoy warm coffee anytime. ☆ IPX65 waterproof design, no worries about getting wet. ☆ Ultra-quiet, less than 10dB, does not interfere with concentration. ◎ Will the heater panel be damaged if coffee spills? It supports IPX65 water resistance, so you don't have to worry about getting wet if you accidentally spill your drink. You can wipe it off with a tissue. The heater panel will not be damaged unless it is submerged in water. ◎ What is the maximum temperature of the cup warmer? It is stated that it maintains 55°C, but the actual temperature will vary depending on the material of the cup and the thickness of the bottom of the cup. If there is a lid, the temperature may reach 70°C. ※ There is some dirt on the box from the time it arrived, but the product is fine and clean.