Amazon.com : edding 1800 profipen - black - 10 pens - line width 0.5 mm - fineliner pen for precise writing, sketching and technical drawing - fine, metal-encased nib - suitable for use with rulers and stencils : Office Products
EDDING 1800/3S Precision fineliner; 0.1-0.50mm. Black - Retroamplis
10 x Edding 1800 Profipen Pigment Liner Fineliners Drawing Pens 0.1mm to 0.7mm | eBay