A Feng Shui spinning ball fountain, commonly known as a rolling sphere or floating sphere fountain, is a popular decorative water feature in traditional Chinese Feng Shui practice. It consists of a heavy spherical ball (typically made of marble, granite, stone, or crystal) that continuously rotates on a base, powered by water pressure from a pump. The flowing water and spinning motion symbolize the endless cycle of prosperity, wealth attraction ("rolling in riches"), and positive energy flow (Qi