Abstract: A play construction kit includes modules, connector parts and a storage box. The modules may be sized so that a child or adult requires two hands to move a module while in another embodiment, the modules may be sized so a small child can play with the modules at a desk or somewhere inside a room. The modules are either primary modules or secondary modules. Primary modules have at least one full aperture or at least one half-aperture. The primary modules have an aperture diameter that ranges in size but is sufficient to allow the connector part to pass through. The connector part may fit in any aperture diameter with or without friction. Secondary modules serve to support or work with said primary modules or connector parts.