Leonardo da Vinci's ingenious constructions: from simple slats you can build a bridge and a dome that carry themselves. Without glue, without string and without a nail or screws! However, you need to build a steady hand and a bit of tact! With assembly instructions for bridge and dome. How fascinating: Module by module grows the structure, if you want, until all the rods are installed. Also ideal for free building, here for example in a picture combined with the stages 42100. 100 assorted colored sticks in wooden box. Wood: lime wood varnished in color, box oiled. Dimensions: chopsticks L = 18cm.

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