The stylus was a pointed reed instrument used for writing on wax tablets. It was used in ancient times by the Greeks and Romans. The stylus was made from a sharp piece of metal or bone, and it was used to write on a wax tablet. The wax tablet was a thin layer of wax that was spread over a wooden board. The stylus was used to make marks in the wax, which could be erased by smoothing the wax with a finger.