Dukal™ Nonadherent Dressing, 3 x 4 inch, 1 Case of 1200 Jobst Ultrasheer 30 40 ThighHi Accepted by leading authorities as Hip Kits 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 Junior * With 3 Wheels * Easy release folding mechanism can be operated by using fingers palm or side of hand * Cross braces are near the top to allow full gate * Made of 1 diameter aluminum for maximum strength while remaining lightweight Weight capacity: 350 Lbs Absorbent pad with non stick outer facing allows the dressing to absorb without adhering to the wound 3 x 4 inches