_Made of metal
An absolutely magical looking armillary, and a great decorative piece for any modern household. This ancient celestial tool is plated with copper alloy from the outside ring all the way to the center sphere. Beneath the innermost ring features a central sphere, while a bronze alloy base supports the orbits above. Invented in Greece half way through the 3rd century, the armillary sphere is one of the oldest astronomical instruments. The center sphere represents the Earth or the Sun, while the rotating rings represent other orbiting stars. This celestial decorative is ideal for the living room end table or in the home office. Place it anywhere you need a firm reminder of the heavens above you.