Four Wooden 3-D Puzzles Pteranodon, Mammoth, T Rex and STryacosaurus This kit can be a mental & educational challenge for children: it can be a 3-dimensional puzzle or it can be put together by using logic and the numbered diagram on the back of the package showing the interconnection points for the pieces, or a visual challenge by using only the picture on the package front as a guide. There is no instruction sheet included – this is an international product with instructions on the back of the box in 6 languages. This kit can be easy to assemble, the wood parts just snap out. However this is a natural wood product and there are variations and splinters with wood. It comes with a small piece of sandpaper, to smooth the edges before assembling.
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