The Dual rhombic pyramid puzzle Designer Michael Toulouzas Craftsman Michael Toulouzas Category Interlock No of pieces Six Wood used bubinga-maple This puzzle is two pyramids with a shape of rhombic and they are one inside the other. Very attractive puzzle,and not easy to solve because the shape of the pieces is hard to hold them and do your tries.All pieces are dissimilar.More pics of it.or Back to puzzle index.