10mm Black Obsidian Crystals & Aurolite Crystals.

Benefits:
• Eliminate negative energy in the body, fatigue, stress, headache
• Best for those people who need to work at night, to shield against evil & negativity
• Applicable to spiritual healing, through the human body seven chakras, re-adjust the body's mechanism to achieve healing effect
• Reconcile and improve emotions, giving people a sense of mind and clear thinking