Jade raised her hand and said, "There are four general shapes, each designated to a elemental symbol, earth, air, water and fire. Earth-shaped fingers are more squareish, air-shaped are longer, sometimes with bulging knuckles or low-set thumbs, water-shapes are also long, but more flexible and conically shaped, and fire hands have shorter fingers, sometimes with flushed or pinkish skin. There are also twelve different types of fingernails, each associated with a different zodiac sign.