rOtring Isograph Technical Drawing Pen, 0.18 mm, (S0201990)
rOtring Isograph Technical Drawing Pen, 0.18 mm, (S0201990). This is a high-precision technical pen with a refillable ink reservoir, available in 13 different line widths.  Wear-resistant, hard chrome-plated thin tip allows exquisite detail work. Nib is crafted from stainless steel.  Push-on sleeve provides easy access to ink helix and fast cleaning. Color coded barrel indicates line width. Refillable ink reservoir is ideal for frequent drawers. Fill from high-density pigment ink bottles available in multiple colors. Ink not included. Uses high-density opaque, lightfast, fast-drying, waterproof pigment ink for sharp line, exceptional adhesion. Limited warranty: guaranteed for 2 years from original purchase date against defects in materials or workmanship.