A knee brace is a medical aid used to immobilize and stabilize the knee joint. It can help relieve stress and load on the knee joint, which can reduce pain and discomfort. Knee braces are commonly used by athletes, the elderly, the injured, and individuals who need additional support. The characteristics of the knee joint strap include soft material, high comfort, elasticity, easy to wear and adjust, and its tightness and size can be freely adjusted according to individual needs. In addition, the straps provide additional support and stabilization, helping to avoid twisting and turbulence in joint movement that could prevent further injury.