These palo santo sticks are very large so having just one will last for a very long time.
Palo Santo is known in Brazil, Ecuador & Peru to cleanse environments similar to how sage is used in the United States. It tends to be used a lot in spiritual or physical healing ceremonies or situations.
Has a hint of pine, citrus & mint. If used in an environment with energy that needs to be shifted it may smell unpleasant so you know it's working.