Dual Heater Room Shoes Color: Beige Size: M (23-25 cm) Set of 2 Perfect for everyday wear and travel! Warm and toasty feet Room shoes that warm up simply by plugging into a USB port and turning on the power. Recommended item for cold seasons when your feet feel cold. *USB power supply not included. Recommended for those who use computers. Purchased at a store and stored at home, so please refrain from purchasing if you are sensitive to such things.