Grimm's | Building Set Basic Set 2Grimms Building Basic Set 2 wooden building block set comes in a 40 x 40 cm wooden frame and comprises 46 wooden blocks. A beautiful giant puzzle and a construction set in one. Grimms from Germany, make the worlds best wooden building blocks for children using all sustainable timbers and non toxic dyes in stunning colours. Each block is sanded by hand giving it the famous Grimms finish of non sharp edges and non slippery surface for better building.