The wrist is the most active part of our body. The chance of tendonitis at the wrist is very high. To protect it from sprain or accelerate recovery, wearing wrist guard is one of the effective methods. Wristbands have become one of the necessary items for athletes to wear. It is obvious that sports enthusiasts use wrist guards in sports, especially for volleyball, basketball, badminton and other sports that require wrist movement. Wristbands are best avoided to hinder the normal operation of the hand, most wristbands should support finger movement without restriction. Nylon wristband is a knitted material with good breathability, which can dissipate heat well during exercise. At the same time, it has good elasticity and can be well adapted to the size of the wrist. Wrist pain in some patients can stretch the long tendon that extends into the thumb, so wrist braces that include the thumb are also designed.