The constant temperature heating coaster is designed to keep your drinks warm without overheating. The ceramic mug included in the set is both sturdy and stylish, making it suitable for any setting. Whether you're at home or in the office, this coffee warmer set that your hot drinks stay at the good temperature. Features -Color:Black -Material:Ceramic -Size:15.00X11.00X10.50cm/5.89X4.32X4.13in(Overall) -Size:12.00X11.00X9.00cm/4.72X4.32X3.54in(Mug) -Size:15.00X11.00X2.00cm/5.89X4.32X0.79in(Heating Coaster) -Power Supply: USB -Voltage:5V -Keeps drinks warm: ideal for keeping coffee, tea, milk, and cocoa warm, ensuring your beverages stay at the good temperature -Steady temperature: maintains a constant temperature of around 55°c, providing a warm drink even in cold weather -Compact and portable: the palm-sized warming pad is small and , making it easy to carry and ensuring warmth is always within reach -Wide compatibility: suitable for use with ceramic cups, bottles, stainless steel cups, glass cups, and various beverages -Great for any occasion: good for various settings, making it an excellent office present, a handy desk accessory, or a home office essential Package list: 1 x Ceramic Mug 1 x Lid 1 x Spoon 1 x Heating Coaster 1 x Present Box