Wind & Weather IN6807 Colorful Law of Physics Indoor Glass Galileo Thermometer, 20 H x 2 Diam, Multi The colorful law of physics indoor glass Galileo thermometer provides an accurate reading of the temperature based on a design by Galileo This gorgeous Galileo thermometer is a work of art with blown glass balls of varying colors in a delicate blown glass cylinder The glass balls Rise and fall within the liquid-filled cylinder to reflect changes in the temperature, and each ball has a small charm to read the temperature Cylinder stands 20h x diameter and sits on an attached glass stand to keep it sturdy and secure Size: 20"H x 2" Dia.