This is a Sri Yantra crystal grid made out of Birch wood. These are made to order, you can choose between approximately
4, 6, 8, 10, 12, and 14 inches in diameter and 4mm thick. This is just for the grid, stones much be purchased separately.
The Sri Yantra is a form of mystical diagram, known as a yantra, found in the Shri Vidya school of Hindu tantra. The diagram is formed by nine interlocking triangles that surround and radiate out from the central (bindu) point.