I adore these, the hold other crystals nicely but not so much larger spheres (I tried 😆) carved out of Black obsidian they also stand nicely.
Obsidian is a protective stone which is also said to ground any spiritual energy and dissolves worry and fear, which are helpful qualities when a person wants to work with divination of any kind.
Measure approx 9.5x10cm

Black obsidian pair of hands