Rotring Isograph Fineliner Pen

Rotring Technical Pens are instruments created for engineers and architects, engineered with precision for optimum performance. Isograph offer an exclusive rOtring technology available in different line widths and a color coding in compliance with ISO standards. They can be used on a variety of surfaces such as lineboard, tracing paper or vellum drawing paper. Isograph allows working in exquisite detail, offering a unique precision. Innovative push-on sleeve made for easy access to the ink helix and fast cleaning, Thin stainless steel nib for the highest precision ever and a very long usage, Refillable ink reservoir (Isograph drawing inks to be used with tube ink pen), Line width of 0.10 mm Line width for drawing per ISO 128 and DIN 15 and for lettering per ISO 3098/I-DIN 6776.