Sold in pairs, one male stone and one female stone.  Stones are approximately 1 inch and vary in size.  Stones pictured are for reference, you will receive a similar pair.

Boji Stones are concretion stones found at the base of a natural pyramid mound in Kansas.  These stones are sold in pairs because they have a "male" and "female" formation.  The male form is typically rougher with protrusions whereas the female boji stone is smooth.  

Boji's have a magnetic pull between the male and female stones making them a novelty.  Geologically, they are comprised of pyrite, palladium, fossil and petrified bone.  Metaphysically, they emit an uplifting energy and are effective for pain relief.