Used as a smudging bowl or in the practice of Feng Shui. Each abalone shell is a natural and unique piece! The inner lining is composed of Nacre, also known as Mother of Pearl, which has beautiful iridescent colors and markings. These Abalone Shells are oval shaped with natural imperfections such as grooves, and holes which are respiratory apertures which allows a living Abalone to vent water from it's gills. The exterior of each shell is dull and striated and the colouring varies from shell to shell.