Black Obsidian is truth-enhancing.  A strongly protective stone, it forms a shield against negativity.  It blocks psychic attack and absorbs negative energies from the environment.  Obsidian draws out mental stress and tension.  It stimulates growth on all levels, urging exploration of the unknown and opening new horizons.  Brings clarity to the mind and clears confusion.  Helps you to know who you truly are.  Obsidian dissolves emotional blockages and ancient traumas.  Promotes qualities of compassion and strength.
Obsidian aids the digestion and detoxifies.  It reduces arthritis pain, joint problems and cramps.  Warms the extremities.
Note: Towers/Points may be slightly different to picture as crystals do vary.
Disclaimer; Crystals should not be used instead of regular medical treatment, but in addition to treatments Always seek professional help when dealing with health-related problems Crystals & small parts should be kept out of reach of children as may cause a choking hazard