Great for sketching, outlines, school or as a simple fineliner: Blackliner Made in Germany have a water-based archival ink and are resistant to water and chemicals, too.

The robust metal-encased 0.3 mm - 1.0 mm tips guarantees fine and exact lines – perfectly suitable for outlines. 
Due to there "Cap off" function the marker are protected from drying out for 90-180 minutes*. * stroke width 1.0 mm = 30 minutes
The high-quality Blackliner have a slip-proof, matt surface.

Set 2 consists of 4 markers with the following stroke widths: 0.3 mm, 0.5 mm, 0.7 mm, 1.0 mm