Brush pens provide far more variation in line width than the usual fineliner pen. Their nibs have a large foundation that then tapers to your high-quality place. Commonly the nib is made of a conical piece of felt, but there are pens which have a real brush idea crafted https://beauohxnb.blogkoo.com/5-simple-techniques-for-how-to-draw-with-ink-pens-54491426