Independent research and development production, Patented Product.                                                                          
Made of superlight aircraft Al-Mg Alloy. Light weight, ＜890g, wear light,                                                                             Independent hydraulic cylinder design, passed 5 million times of fatigue testing                                                    Outstanding waterproof performance, resistant to fresh, sea and chlorinated water                                                          Passed low temperature test, used normally at temperatures as low as -40℃                                                                  Geometric Lock structure ensures that the knee joint is in a safe locked during stance automatically unlock during the swing phase Hydraulic cylinder flexion damping and extension damping 10 levels of segmental adjustment, applicable to 1-3 levels of activity level;