This is an interesting puzzle. The object is to extract the ball by navigating a hidden internal 3D maze. This puzzle is a discontinued Orb Factory item.
This paradoxical 3-D packing puzzle has two unique assemblies, one using seven pieces and the other using all eight. There are two possible solutions for each assembly. Will be shipped in the seven piece assembly.
The YOT puzzle is a shiny metal disc that comes with a real US silver dollar. The challenge is to open the YOT and remove the coin without power tools. Comes in original box with paper.