Duodecedron Planus Vacuus
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Tetracedron Planus Vacuus. From the drawing by Leonardo da Vinci, published in the treatise "De Divina Proportione" by Fra Luca Pacioli (1497). Consisting of 3 Regular Triangles, it uses 12 interlocking joints that allow it to be assembled and disassembled several times. It does not require the use of glue. Dimensions 15 x 13.5 x 13.5 Gr. 35 N. Components 12