Daiso's petit block adapter for toio core cube.'petitblock8x8.stl' is 8x8 stud plate, 'toioCubePetitBlockBase.stl' is base plate for toio core cube. You have to laminate these. These are suitable for FFF(FDM) printer.'toioCubePetitBlock2.7.stl' is combined one. To print it, need support.