Black Obsidian- Black obsidian is known as a protection stone, the regal warrior of stones. It has been used since ancient times to ward off darker energies and provide spiritual protection. This potent gemstone works with your body to create an energy shield that helps protect you from negative influences. Dissolves emotional blockages , promotes compassion and strength. It helps digestion and detoxifies. (ROOT CHAKRA)
7 chakras - Chakras are thought to provide subtle energy that helps your organs, mind, and intellect work at their best level . Energy (known as prana in the yogic tradition) flows through the chakras. When a body is balanced, energy flows freely and can be energizing, revitalizing, and peaceful. It helps with balance 
8mm beads size 
8-8.5” size