6 Back Support X Small 26 36 Sportaid Penlights Accepted by leading authorities as Select Ear:Left Ear 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 high High (Open Toe) No silicone band * Beige * 20 30 mmHg * Small * Ankle Circ 26 36 * Excellent Retail Packaging 6 High Back Belt * Fits hip circum