Specialist Boston Bag 16 (Smooth) Black Pulse Oximeters-Accessories 5 * Casters 5 * Style:Pair (Left & Right) MS03 Oxygen Masks When pin is in

Specialist Boston Bag 16 (Smooth) Black Pulse Oximeters Accessories 5 * Casters 5 * Style:Pair (Left & Right) MS03 Oxygen Masks When pin is in 5 * Casters 5 * Weight Capacity 450 lbs * 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