Grimm's Building Set WindowsThe Pastel Duo provides beautiful building material and everything in duplicate: two different basic geometric shapes, two colour worlds, two types of wood and two building blocks per pastel colour. The contrasts of the natural coloured triangles and the pastel coloured rectangles harmonize wonderfully. Thus, the Pastel Duo not only perfectly complements the building materials of our pastel series, but also invites you to sort by colours and shapes