Features: Designed to fit snugly on your knee to promote circulation, increase blood flow, maximize mobility and reduce knee pain. Relieves general knee pain, Patella tendonitis, ACL, MCL, Meniscus pain, arthritic knees, runners knee and improves balance Specifications: Material: polyester cotton Color: white Size: 18.9-22.44 inches/ 48-57 cm Package includes: 2 x Osteoarthritis knee pads Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays. Our product is not suitable for sensitive skin. Test whether there is any allergy on a small part of your skin before use. Please stop applying if there is any discomfort.