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:Available in degrees Fahrenheit or Celsius. (SPECIAL ORDER IF CELSIUS IS PREFERRED - CALL US)Injection molded high impact polystyrene case.Real glass lens.High quality Canadian made Trintec Thermometer Movement.No battery required.One year manufacturers warranty.Dimensions: 15" x 7.5" x 2"