This is a brand new QJ pyraminx crystal puzzle. It is a very smooth puzzle. The puzzle consists of a dodecahedron sliced in such a way that the slices meet at the center of each pentagonal face. This cuts the puzzle into 20 corner pieces and 30 edge pieces, with 50 pieces in total.
Each face consists of five corners and five edges. When a face is turned, these pieces and five additional edges move with it. Each corner is shared by 3 faces, and each edge is shared by 2 faces. By alternately rotating adjacent faces, the pieces may be permuted.
This puzzle comes fully assembled and stickered from the factory. Note that lubricating and working in the cube improves its performance. It is highly suggested to lubricate the cube to make it move more easily.