This is a Sacred Heart crystal grid made out of Birch wood. These are made to order, you can choose between approximately 4, 6, 8, 10 and 12 in diameter and 1/8" thick. This is just for the grid, stones much be purchased separately. The Eye of Horus was a sacred symbol said to protect anything behind it. It is the “All seeing Eye”. It is a symbol of great god power. Many people wear the Eye of Horus as an amulet to protect themselves from envious and ill-wishing people. Crystal grid and healing sets are groups of stones that go together for a purpose. Sets of crystals and stones are used for ritual magickal or spiritual crystal healing purposes or with Reiki-Seichim energy work for healing. Some are generalized and others have specific purposes.