This super-sized Thermometer has easy-to-read Fahrenheit and Celsius scales. The arm is reversible for trouble-free mounting in any window. Matching hardware is provided, and the convex glass crystal assures a clear view of the large, classic numerals. Crafted of solid brass with a living finish. These thermometers will not peel, flake or rust. Guaranteed for Life. Size: 8.5" diameter.