Ishihara 38 Plate Chart Book for Color Blindness Test & Monitoring Authentic deep tissue massager originally Ships From:FL, USA

Ishihara 38 Plate Chart Book for Color Blindness Test & Monitoring Authentic deep tissue massager originally Ships From:FL, USA Authentic deep tissue massager originally designed for clinical use * Ideal for warming up muscles prior to Chiropractic adjustment * 8 massage spheres cover a broad area ideal for large muscle groups * A full body massage takes only 5 8 minutes * Designed to direct 95% of its energy into the patient Use in dialysis blood collection oncology respiratory critical care and cardiac * Deep recline and Trendelenberg position can only be attained by attendant * 3 positions with infinitely adjustable back * Standard release handle feature for quick back release 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