Banshren 7 Piece Sacred Geometry Symbols with Merkaba Star Carved Green Aventurine Stone Set by 7 Pieces Healing Crystal Set(Green Aventurine) 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 banshren is a registered brand, and not a knock-off. We guarantee your full satisfaction or your money back! Simply return the item.risk,banshren is a registered brand. Cut and shape will vary slightly since these are natural stones. They arrive in a gorgeous, padded Banshren box.