The chimes of mercury is named for the innermost planet in our solar system which, in turn, was named for the ancient Roman messenger god. Mercury is similar in appearance to the moon, with lots of craters. Because it is normally not visible because of the glare of the sun, mercury can be viewed on in the morning or at twilight. This chime is designed and handcrafted for superior musical performance. It is hand-tuned to a universal, pentatonic (five note) scale and acts in concert with the window to create random patterns of wonderful sound. Harmonizes beautifully with all the other Encore collection chimes. This chime is designed to hang from a string loop, rather than an O-ring.