Koh-I-Noor Rapidograph Pen & Ink Set, 6-Pens 6 ink pens for fine arts (set includes 7 pens but one is missing) Rapidograph Pen System for Fine Artists LEGENDARY RAPIDOGRAPH STAINLESS STEEL TUBULAR TIPS Engraver's Precision Perfect for Embellishing, Outlining, Illustrating, Loose Sketching & Pointillist Technique 7 Pens with Nib Keys & Ink Special Smaller Tip Sizes for Fine Art Use: 6x0, 4x0, 3x0, 00, 0, 1, 2