Description_x000D__x000D_It is made of material, which can be used for a long time. Very comfortable to wear, the temperature can be adjusted because of the three gear temperature design. You can send it to your families and friends as a gift, they will be happy._x000D__x000D_Features_x000D__x000D_- Color: Grey._x000D_- Material: Cotton._x000D_- Size: 41.00x11.00x0.50cm/16.11x4.32x0.20 inch._x000D_- Input voltage: 5V._x000D_- Heating temperature: 45-55._x000D_- Made from premium material, it is skin-friendly and could be folded freely._x000D_- Safe to use. No fear of leakage of electricity, very safe. Also can be a gift to your friends._x000D_- It is very comfortable to wear. Convenient to store and portable to take outside for travel._x000D_- You can freely adjust the temperature under various conditions according to your needs._x000D_- Free size fits for most people, it is elastic and comfortable, very practical, giving you a good using experience.Packing list1 Pair x Socks (Random Style, with DC Adapter)