| Contingut | Regles plans de fusta |
| Punts de venda | |
| Característiques | disseny senzill, longitud diferent per triar |
| Ús | Dibuixa la recta i mesura la longitud |
| Paràmetres | 16 cm, 20 cm, 30 cm, 50 cm |
| Certificació |
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