banshren Sacred Geometry Symbols Engraved Natural Amethyst Stone Healing Balancing Set 7 Pieces Healing Crystal Set(Amethyst) Size: approximately 0.6-0.8 inches The shapes include Cube, Icosahedron,Tetrahedron,Octahedron,Ball,Merkaba Star and Dodecahedron. All meterials are natural,no dyed process or lab treated Money Back Guarantee:If you are not completely satisfied with our stones ,simply return it with full refund.Buy absolutely no risk,banshren is a registered brand. Make sure the seller is banshren to avoid buying poor quality items. Cut and shape will vary slightly since these are natural stones. They arrive in a gorgeous, padded Banshren box.