This is a Antahkarana Crystal Grid made out of Birch wood. This is just for the grid, stones much be purchased separately.
In Hindu philosophy, the antahkarana (Sanskrit: "the inner cause") refers to the totality of two levels of mind, namely the buddhi, the intellect or higher mind, and the manas, the middle levels of mind which (according to theosophy) exist as or include the mental body.