Patella Strap Universal Omega Zinc Tapes 6 Standard 140 degree * 7344301 6 Standard 140 degree * Measures the range of motion of metacarpal phalangeal and interphalangeal joints * Head has two opposing scales marked in 5 degree increments * Features a linear scale in both inches and centimeters on arm * Deluxe model features a larger protractor head and full 180 degree scale for more accurate readings * 500 lb weight capacity Recommended to aid in the relief of Osgood Schlatter Syndrome * The patella strap is reversible for inferior or superior applications * Improves patella tracking * Helps relieve pain * Improves allignment of the patellofemoral joint * Provides consistent and focused compression over the patellar or quad tendon * Fits up to 19 *