The Mechanics 164 pcs set contains: 46 non-magnetic metal spheres, 26 metal blue magnetic rods, 1 indicator rod, 8 tubes, 16 washers, 24 feet, 30 linear bars, 2 squares, 1 cage, 1 plate, 1 cone, 1 square panel, 2 triangle panels, 2 bearing supports, 2 inner gears e 1 crown.