The abalone shell is traditionally used to burn herbs and smudges. A stick can be leant against the edge while still alight. (Of course, never leave it unattended). Size: Size and look of abalone shell can vary, please see options. The dimensions of the abalone can vary between 3-4 inches (10 cm) at the widest point.  As this is a natural product, what we have in stock can vary depending on what is available. Environmental info: These abalone shells come from South Africa & Mexico. They are farmed and are not caught in the wild. This means natural habitat is not destroyed and the supply is sustainable.