A dense technical diagram displays the mechanical components and instruments of optometry equipment rendered in fine black line work against a white ground. The composition centers on a large phoropter flanked by smaller optical tools, lenses, and testing devices arranged in a systematic, patent-drawing style that captures the intricate engineering behind vision correction. At home in a medical office, optometrist's workspace, or a professional's study. Built from durable looped vinyl with a non-slip latex backing and made to order, ready to take the weather. The first thing guests see, an independent artist's work waiting at the door.