7 Chakra Geometry Set, Approx. 1.5x1.5cm. The Platonic Solids Geometry set is connected with 7 elements. Fire (Tetrahedron), Earth (Hexahedron), Air (Octahedron), Water (Icosahedron), Aether (Dodecahedron), Consciousness (Sphere) and Light (Merkaba Star). These geometric stones can create a positive energy field, and protect from negative energy and psychic attack. It is suitable for Reiki healing, chakra balancing, meditation and yoga.