Due to State and Federal Law, we sell Syringes and Needles only to the Medical Facilities. Four inelastic Velcro straps produce a stable, circular frictional connection * The lateral aluminum sidebars are anatomically contoured * Special orthosis hinges adapt themselves, independently of each other, to the compromise pivot points and thus take into account the position of the individual compromise axis of rotation of the knee in three-dimensional space * The hinges permit restriction of extension and flexion in 10? intervals * The pad ensures simple and correct positioning of the orthosis against the leg * Circumference middle knee: 16 1/7" - 17 1/3" * Circumference 6" below knee: 15 3/8" - 16 1/16" * Circumference 6?" above knee: 20 1/16" - 22 7/16" *