Good for pieces that need to be visible at night or in dark spaces

controlled linework drafting and technical sketching call for — hair-thin keylines

Just buy the different refill colours that you need and mix them directly in the empty refill bottle

and leather

stabilo pen 68 fiber tip pen 10 set Idwrap Good for pieces that needSet of 10 Stabilo Pen 68 felt pens in different colours. These are classic felt pens at a bargain price. The pens are filled with a water based, fast drying ink, and they trace lines that are 1 mm in width. Scroll down to see which colours are included in the set. The Stabilo Pen 68 felt pens are also sold individually.