Product parameters:Warm palm and back of hand = warm both sides Color : blue, khaki, black, light grey, dark gray Size: one size (fits most people).Size: approx. 16 cm x 11 cm Package Contents: 1 pair of gloves.1 * USB Cable Electric Heated Gloves: Full gloves and half finger two in one: Half finger design allows your fingers to move with flexibility. In addition, you can fold back the finger guard on the back to keep your fingertips warm. Heating material: 40-50 degrees Celsius is the most suitable temperature for our body. It doesn't feel dry with our overheating. You can also say goodbye to the cold winter with this USB hand warmer. Suitable for: neutral, male and female. Size: One size fits most people. Size: approx. 16 cm x 11 cm (photo).Uses: Great for office work, working with computers, gaming, chatting, movies, music, etc. When students do their homework and do homework while watching TV, talking to family and friends, or playing cards, work, study and Indoor living but in the areas. with heating, air conditioning and insufficient heatingWashing process: Can be washed with water, dry in a cool place, not exposed to the sun or burned in the oven. The product has no memory function, it needs to be connected to a USB power supply, and it does not get hot when unplugged. Note: Do not rub too hard while cleaning to avoid damage from heat. Please unplug the power cord in time when not in use.