The three way compression provided by this strap gives relief against numerous knee complaints including arthritis, patella tendon pain and runner's knee. - The Ultimate Performance Runners Strap can accommodate a knee circumference of : 30 - 45cm. Perfect for rehabilitation following: - Iliotibial band syndrome - Patella tendonitis - Jumper's knee - Runner's knee - Arthritis - Osgood-schlatters disease - Quad mis-alignment