Ba Gua mirror is one of best known Feng Shui symbols of protection. The mirror is believed to reflect back the bad energy against your house.
Hanging the Ba Gua directly outside and facing the structure which you think it will generate the bad chi can send all bad chi back, thereby protects your house. You can hang it above your main door either inside or outside of the wall You can hang it above any windows
Set of Two Bagua Mirror includes: Convex and Concave