Snap-N-Save Sliding Transfer Bench w/Cut Out Swivel Seat Table Paper-Accesories Accepted by leading authorities as Ships From:FL, USA

Snap N Save Sliding Transfer Bench w Cut Out Swivel Seat Table Paper Accesories Accepted by leading authorities as Ships From:FL, USA 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 Air Tube: 64cm * Wider Cut Out and more space underneath the Cut Out seat for easier personal care 75 26 Base Length: 39 40 Base Depth: 18