Clock: Injection molded high impact polystyrene case. Real glass lens. High quality American made Quartz Clock Movement. One "AA" battery required (High quality Alkaline battery recommended for best performance). Thermometer: Displays degrees Fahrenheit and Celsius. Injection molded high impact polystyrene case. Real glass lens. High quality Canadian made Trintec Thermometer Movement. No battery required. Dimensions: 15" x 7.5" x 2"