These origami modulars have cut off ends which create openings into the hollow center; they are Truncated forms. The end is not actually cut off in the making; the paper unit has 16 folds when joined together an opening is formed. The larger blue origami is a cuboctahedron made with 24 papers, forming 8 triangles and 6 squares. The smaller orange origami is an octahedron made with 12 papers, forming 8 tringles.