Pixiu is the name of a physical creature in Chinese legends that 'eats' the riches of the world. By doing so, it then brings those riches to you, since you’re carrying a Pixiu on your bracelet. The world’s riches become the Pixiu’s riches. The Pixiu’s riches become your riches.
Black obsidian is a form of volcanic glass that is created when lava cools exceptionally fast. The sheer power and energy in lava flows are the reasons why obsidian has such potent energy. Also, originating from lava is why it contains a trifecta of elements: earth, water, and fire.
Om Mani Padme Hum. This is regarded as one of the most sacred mantras in Tibetan Buddhism. Since everything carries with it a vibrational frequency, having this mantra imprinted onto your bracelet will be akin to saying it yourself, except it’s always being emitted into your environment and life. It reinforces the effects of the black obsidian and the Pixiu.