Riding Outdoor Skiing Heated Thermal Long Socks(Black)

1. Material: knitted2. Suitable for many outdoor sports, protect your feet from the cold3. The heating pad inside the socks is not removable, please do not rub them hard when washing.4. Heat generating area: back of toes5. Heating temperature: 50 degrees (measured at room temperature, for reference only)6. 2 x 3V DC battery packs (with light on the battery pack), batteries not included7. 4 x 5 alkaline batteries, or 1.5V rechargeable 5 cells (capacity 1500MAH or more), ordinary carbon batteries (not included)8. Heating time depends on the battery capacity used, the higher the capacity, the longer the heating time9. Size: 24-30 cm at the bottom of the foot, 24-37 cm at the height of the tube, 16-31 cm at the circumference of the tube