Worry beads made of ebony with 33 oval beads. Ebony is a type of wood that is almost black in color, compact, hard, and heavy. It usually comes from trees of the genus Diospyros, but other heavy and black woods from different plant genera can also be used. The density of ebony is so high that it makes it sink in water. Its fine structure and the exceptionally smooth finish achieved through polishing make it a valuable decorative wood.