Double Curved Shoulder ArcDouble Curved Shoulder Arc Double curved shoulder arc allows customizing program for people with limited ROM. Moving the colored tabs from one side of the arc to the other achieves full upper extremity ROM and improved motor planning and visual tracking skills. Use while standing for balance. 24 1 2 inches at highest point, 7 1 2 inches at lowest point. Includes base and 24 tabs. Shoulder arc base measures 3 x 36 inches and also accommodates single