rOtring Isograph Technical Drawing Pen, ISO 0.7 mm (1903494)

This is a high-precision technical pen with a refillable ink reservoir, available in 0.7mm
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.