It Spreads Positivity, this works as an Anteena rest depends on Faith or Belief. But we can say that if you are buying it from "Make IN India/Pick Use-SoilMade" you should not concern about Quality, we are providing you a good Quality of Product.Tortoise Pillar Pyramid SHRI YANTRA WITH KUBER & VYAPAR YANTRA The Sri Yantra is one of humankind's most ancient symbols and represents the goddess Shri or Lakshmi, who is the embodiment of abundance in all its aspects