This is a 4 layer Rhombic Dodecahedron with 14 vertexes. Six acute and eight obtuse angle vertexes. This puzzle turns on the acute angle vertexes. The stickers on obtuse angle vertexes contain just enough information about the puzzle's color scheme to help you solve it. This puzzle is a shape mod and perspective bender. I suggest you know how to solve a 4x4 supercube before you tackle this one. As difficult as this puzzle was, the Lanlan 12 axis face turning dodecahedron was even more difficult. The puzzle turns very smooth and did not pop once. Good quality. This stickers are flawless.