This item is (1) one approximately 4" Diameter Round Clear Glass with "Caramel Tree" Hanging Glass Ball a.k.a Witch Ball. 
These are great window hangings. There's a glass loop on top for hanging. String not included.Each piece is unique, so you're getting a style, not an exact duplicate of the one in the photo.  Most of the color in these is near the bottom and in the tree "branches". There may be more or less of one color or another than the above photos, the pattern of the colors may be heavier or lighter than the photos, the "tree" may have different colors (from above list) than the one shown in the photo and may not look as much like a "tree" than a shrub, etc.  The name "Tree" is meant to be artistic and subjective...shrubs are still trees. 
Any questions just ask.
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These are also knows as "Witch Balls", and here's what Wikipedia has to say about them:
A witch ball is a hollow sphere of plain or stained glass hung in cottage windows in 18th century England to ward off evil spirits, witch's spells or ill fortune, though the witch ball actually originated among cultures where witches were considered a blessing and these witches would usually "enchant" the balls to enhance their potency against evils. Later, they were often posted on top of a vase or suspended by a cord (as from the mantelpiece or rafters) for a decorative effect. Witch balls appeared inAmerica in the 19th century and are often found in gardens under the namegazing balls. However, gazing balls contain no strands within their interior. According to folk tales, witch balls would entice evil spirits with their bright colours; the strands inside the ball would then capture the spirit and prevent it from escaping.
Witch balls sometimes measure as large as 7 inches (18 cm) in diameter. The witch ball is traditionally, but not always, green or blue in color and made from glass (others, however, are made of wood, grass, or twigs instead of glass). Some are decorated in enameled swirls and brilliant stripes of various colors. The gazing balls found in many of today's gardens are derived from the silvered witch balls that acted as convex mirrors, warding off evil by reflecting it away. Because they look similar to the glass balls used on fishing nets, witch balls are often associated with seasuperstitions and legends. In the Ozark Mountains, a witch ball is made from black hair that is rolled with beeswax into a hard round pellet about the size of a marble and is used in curses. In Ozark folklore
a witch that wants to kill someone will take this hair ball and throw it at the intended victim; it is said that when someone in the Ozarks is killed by a witch's curse, this witch ball is found near the body. The word witch ball may be a corruption of watch ball because it was used as a guard of evil spirits.
It is sometimes claimed that the modern Christmas ornament is descended from the witch ball. The ornament was allegedly originally placed on the tree to dispel a visitor’s envy at the presents left beneath the tree. However as the modern Christmas bauble's origins are documented in Lauscha, Germany, in 1847, the provenance of this claim is debatable."
Yes, these are made in China and you will have to remove the little "made in China" sticky tags and may also have to rinse these before displaying.  No soap necessary, we washed 100's and hot water is all you will need.