Wrist protector refers to a piece of cloth used to protect wrist joint. In today's society, wristbands have basically become one of the necessary sports equipment for athletes. Wrist is the most active part of the body and one of the most vulnerable parts. Athletes have a high probability of wrist tendon inflammation. It is one of the effective methods to protect it from sprain or accelerate its recovery. In addition, the wristband is also one of the equipable items in various RPG games.