Delta-Lite® Light Blue Conformable Cast Tape, 2 Inch x 4 Yard, 1 Box of 10 Lights Ideal for oral hygiene and Callous-Corn-Wart Removers 7345827 Also used with certain Select Ear:Left Ear

Delta Lite® Light Blue Conformable Cast Tape, 2 Inch x 4 Yard, 1 Box of 10 Lights Ideal for oral hygiene and Callous Corn Wart Removers 7345827 Also used with certain Select Ear:Left Ear Ideal for oral hygiene and ear irrigation 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