Developed by top optical scientists, the amazing Dial Vision™ eyeglasses have adjustable lenses to give you clear vision. Each lens is independently adjustable, making it easy for you to see – near or far. Simply focus on some wording near or far, and turn the dial on each lens until you can see it clearly. The lenses are impact and scratch-resistant, and the frames are flexible with adjustable nose pads for a comfortable fit. Protective case included. Plastic, one size fits most. (These eyeglasses are not prescription lenses and do not correct astigmatism. Visit your eye doctor regularly). Item can not ship to New York or Wisconsin.