This Mokusei (means wooden-made and also Jupiter in Japanese) is made of 20 pieces of triangle shaped veneer and you assemble them like a puzzle! The material is cherry veneer with back lamination and it is produced by a Japanese veneer company who has high technique of lamination. The package of the shade is a flat triangle. The diameter of the shade on the article is about 17-3/8" and with 14Watt fluorescent bulb, which is equivalent to 60Watt regular bulb, required. Wire unit is not included, but any regular cord that you can buy at a hardware store will work. As it is like a puzzle, you can also create two of 10 pieces, which will be more of an oval shape.