Draw flawless lines with the Rotring Isograph Technical Pen. This high-precision pen with 0.10 mm line width features a wear-resistant, hard, chrome-plated thin tip that lets you create exquisite detail. The ink reservoir is refillable for convenience, and the push-on sleeve allows easy access to the ink helix. It can be used on a variety of surfaces, including line board, tracing paper, and vellum drawing paper.
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