This is a set of 20 pendant tops made of natural tourmaline. This is a set of 20 and cannot be sold individually, so please be aware of this. Tourmaline is called "denkiseki" (electric stone) in Japanese. It is a mineral composed of about 10 different groups, with a very complex mixture of component elements. It has a wide variety of colors, and each color is given a name. The tumbled stones with many colors mixed together exhibit various effects. They are said to be effective for love, health, spiritual talent, aesthetic talent, study, and warding off evil, among other things. Natural stones are made by nature. Because they are not artificial, there is a possibility that cracks and inclusions (inclusions) may be included in the process of formation. This is not a defect, so please enjoy the individual expressions of the natural stones.