Wear on heel or elbow to help diffuse and distribute pressure for comfortable and prolonged use and wear Material is a plush terry loop to be gentle and safe on skin, comes in pair of 2 X-Large, Green, Rolyan Premium Heel/Elbow Protector measures 10" long with a 8"-15" circumference Machine washable, non-latex material Helps disperse energy of impacts and reduce skin shear for extra comfort and reduced joint stress