Set of paving stones

A set of paving blocks wherein each block is a prism having side and end walls that are irregular in outline but are contained only within a respective virtual rectangular perimeter, wherein the rectangular perimeter has a length L in a X axis and a width W in a Y axis at right angle to the X axis;

• at least two spaced apart parallel sections of the prism extend between the side walls, parallel to the Y axis and terminate at the virtual rectangular perimeter, such that each section has a width equal to W and the prism having at least one section bisecting the virtual rectangle parallel to the X axis and terminating at the rectangular perimeter and having a length equal to L, wherein L is a multiple of a constant d when d is equal to the distance between the at least two sections.