This adjustable strap is designed to improve patellar tracking and elevation by applying mild pressure on the tendon below the kneecap. The tubular insert provides uniform pressure to help reduce pain caused by running and jumping. Helps relieve pain from chondromalacia (irritated kneecap) patellar tendonitis and Osgood-Schlatter's Disease. Adjustable - one size. Fits left or right. Support level: moderate. Sizing: Measure around leg directly below knee: 10 in - 22 in (25.4 cm - 55.8 cm). Suggested Use: EASY TO APPLY: 1. Place tubular section below knee cap. 2. Fasten behind knee. PRODUCT CARE: Hand wash cold. Do not bleach. Line dry air dry. Do not iron. Do not dry clean. Do not use fabric softener. Active Ingredients: N/A Inactive Ingredients: N/A Other Ingredients: N/A