Assura® One Piece Drainable Transparent Ileostomy Pouch, 10 Inch Length, 10 to 55 mm Stoma, 1 Box of 10 Obstetrical Kits Accepted by leading authorities as 416700 Accepted by leading authorities as a simple and accurate method for discovering congenital color blindness and red green blindness each in two forms complete and incomplete * Includes four special plates for tests to determine the kind and degree of defect in color vision * Makes use of the peculiarity that in red green blindness blue and yellow appear remarkably bright compared with red and green * Color plates encased in specially designed album type books for ease of handling * Detailed instructions included LARGE 14 DIAMETER * Tan * XX Light * Flexion extension opposition and supination exercises can be performed using the exercise web * Resistance may be modified by adjusting the hand position depth of finger insertion or by moving to a different resistance (color) web * Unique spiral adhesive stays on securely yet removes gently Soft fabric backing on pouch leaves skin cool and dry