Pyramids have always been part of the Sio collection. During the years Rokus and Corry made several designs.
The central axis of the pyramid makes it possible to make different combinations with the stacked forms. A logical sequence is by size; large at the bottom to small at the top. The colours often work along with it. Thus creates a classical pyramid.
The 'Siolieten' colouring technique paints the wooden parts of the pyramids with bright transparant colours.
The pyramid can be a figure with a fixed order, as August. Changing the order of the elements creates new dolls with funny shapes and colours as in the series of buildingsets in 1957.