18" Glass Galileo Thermometer with 10 multicolor spheres and gold colored temperature tags.
Temperature range in 2 degree increments from 66 to 84 degrees Fahrenheit. Item comes packaged in a full color gift box with instructions.
Galileo Thermometer How to read Locate the lowest temperature tag from the upper group of spheres in the cylinder.
How your Galileo Thermometer works: If the room temperature rises the spheres will sink one by one to the bottom of the cylinder. If the room temperature falls the spheres will rise one by one to the top of the cylinder.