This bee home features 24 holes to attract non-stinging, docile solitary Orchard Mason Bees. Orchard Mason Bees are narture's best pollinators, and they are unable to excavate their own holes for nesting. They are easily attracted to wood block with nesting tubes and can be raised by anyone. Complete instructions and information is included. For more information on Orchard Mason Bees, please see our "Resource Center."