Staedtler Lumocolor Special Extra 10 319 Oil-Based Pen, Fine, Black, Pens, F-9

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Staedtler's unique special ink creates a thin film on the pen tip, preventing it from drying out for two days (ISO 554). Unlike the standard Lumocolor, this pen can write on glass with special surface treatments, such as optical glass. It has excellent lightfastness, making it ideal for outdoor use. Its strong fixative properties also mean it won't fade easily over time. Its excellent quick-drying properties prevent writing from smudging, ensuring consistent and reliable work. Size: 141mm x 9.8mm x 12.8mm, extra-fine tip