My main medium of work during many years. Started on technical pens. Up to this day, they still give off the best results; but at the cost of uncountable leaks, bent tips and other undesireable mishaps. Later, moved on to felt tip pens, the all-popular Mikron pens. They're much cleaner and neater to use, but the poorer quality is a trade-off.

The technical pen allows me to give a great deal of precision to my drawings, which I love. Felt tip pens, on the other hand, have an easier stroke, which allows for more sketchiness.