1. [Spring Knee Support Technology]: Anatomically contoured patella gel pads surround the patella, double-sided metal spring stabilizers fit your knee joint perfectly. These special functional elements reinforce lateral support and maintain joint stability. It effectively disperses pressure, keeps your knee warm and lubricates your joints. BEST CHOICE for sports protection and pain recovery. 2.[IMPROVED DESIGN]Overcoming the shortcomings of similar products. Medical grade knee pads without allergies or itching. Metal spring stabilizers and patellar gel pads will not easily fall off during use. Non-slip silicone strips and highly elastic fabric to prevent slipping and falling up and down during exercise. non-slip coating; high-density knit fabric: delicate skin, healthy and breathable breathability and moisture absorption; The knee is stable during exercise, and the springs are arranged on both sides to disperse pressure and provide stronger support;