This is the secret mirror amulet of the Wisdom Buddha Manjushri, and is one of the most powerful defence amulets for protecting one from physical harm brought by dangerous and violent people, as well as spiritual harm from malevolent spirits.
It also protects one from premature death. Carry it with you always to stay safe from robbery, burglary and accidents. Whenever you feel you are in danger, bring out the mirror and swipe it (with the mirror facing outwards) in one full circle clockwise around you.
This is a powerful mirror as a defence amulet for subduing the feng shui afflictions of the Violent #7.