108 Chakra Meditation Natural Lava Stones Healing Necklace /  Bracelet.  It has Reiki Healing Energy, great for meditation, prayer, breathing exercise. 
 
Product Description:
 
Type: Elastic band.
Material: Semi-Precious Stones with a Tree of Life Charm.
Stones: Lava Stones - Red Agate - Orange Jade - Amethyst - Tiger Eye - Lapis Lazuli.
Size: Stones ~6mm; Bracelet/Necklace Length - approx. 27".
Color: Black.
Gender: Unisex.