Designed for Patella tendon injuries including jumpers knee and Osgood Schlatters disease. Helps to relieve pain and reduce some of the dynamic forces on the patella tendon caused by constant running and jumping. Mueller's Jumpers Knee Strap features a tubular insert which provides focused mild pressure on the tendon below the kneecap to help guide the patella. Strap is fully adjustable and comfortable for all day wear. One Size Fits Most-fits knee 10-22 inches. Sold Each. Select color when ordering.