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Maria Art - Rotring Isograph Technical Drawing Pen Junior Set -Rotring Junior set comprises 3 Technical pens,1 Tikky mechanical pencil (0.5mm) and 4 ink cartridges -Its patented push-on sleeve makes for easy
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Rotring S0699370 Isograph Technical Drawing Pens, Set, 3-pen College Set (0.20 Mm, 0.30 Mm, 0.50 Mm),brown - Math Sets - AliExpress