The SENTEQ Bamboo Charcoal Knee Support with springs provides firm support with gentle compression over the kneecap. Two spiral stays on both sides of knee provide additional support and stability for the knee. This knee support is easily slips on and remains securely in place without bunching or rolling. Bamboo charcoal emits Far Infrared Rays. Natural Far Infrared Ray makes the human body warm naturally from inside which helps to revitalize human cell molecules and helps to improve blood circulation. ?Arthritis ?Mild strain/ sprain ?Knee instability