Keep an eye on the outdoor temperature in age-old style with this classic Galileo thermometer. Based on physicist Galileo Galileis discovery that the density of liquid changes in proportion to its temperature, it is an eye-catching & intriguing ornament for your garden. Supplied with a stylish metal bracket for hanging on a fence, wall or tree, the thermometer is bound to become a talking point among guests. The liquid-filled glass tube contains tagged glass balls that rise & fall with the temperature, the ball at the lowest point indicating the temperature.