Koh-I-Noor Rapidoplot fiber tip plotter pens. Fiber Tip S-Style plotter pen is a one-piece pen with a bonded fiber, or nylon plotting tip that produces the brightest looking graphs and charts. Excellent for area-fill applications and the highest quality overhead transparencies. Line widths gradually widen during use. The Hewlett-Packard compatible plotter pens are designed to be used on vellum, bond paper, chart paper, general purpose papers, and Mylar drafting film. Fits HP-compatiable plotters: 7090, 7220A, 7221 A, 7225A, 7440 HP Colorpro, 7470A, 7475A, 7550A, 7550B, 7570 HP Draftpro, 7580A, 7585A, 7586A, 7595A, 7595B, 7596A, 7596B, 7599A, 9872A, HP Draftmaster I, II, MX, RX, SX, HP Draftpro DXL (7575A), Roland DPX, DXY, and GRX Series, and other similar plotters. Rapidoplot disposable plotter ink pens are ideal for business and presentation graphics.
Ink Characteristics: Archival/pigmented Opacity (black ink): 85% Paper; Copier reduction: Good; Diazo reproduction: Good; Wet-rub resistance: Good; Fade resistance: Excellent; Plotting Speed: 30cm/sec. (paper); 30cm/sec. (film); Pen Down Force: 18 grams. Made in USA. PACKS OF 5.