ITEM NAME:3Pcs Car Quartz Hygrometer Time Clock Temperature Thermometer Moisture Meter Specific to the article Materials: Steel Coating, ABS Cover, Glass Mirror Diameter: 4 cm Black color Functions: Temperature, Time Clock, Air humidity measurement product characteristics Compact size, conveniently located Inferior with double-sided adhesive tape Note: Please allow 1-3mm error due to manual measurement..1 X Quartz Watch. Compact size, conveniently located. Inferior with double-sided adhesive tape. If you have any problems, we are very glad to help you. Also note that monitor settings may vary from computer to computer and may distort actual colors.