Betterdecor Handmade Obsidian Feng Shui Pi Yao Hanging for Wealth (with a Pounch) The sale is for one Obsidian Pi Yao Charm or hanging and a pounch with betterdecor printed on it . material: obsidian Total 4" in length. Size of Pi Yao: 0.5"x1" you may put on your cell phone or handbag or anywhere you desired. Obsidian can obsorb the negative energy from people's body, so it is good for health to wear obsidian jewelry