Brush pens provide far more variation in line width than a fineliner pen. Their nibs have a broad base that then tapers to your fantastic position. Usually the nib is made from a conical bit of felt, but there are actually pens that have a real brush idea made https://howtodrawwithinkpens77654.bloggactif.com/36435850/a-review-of-ink-drawing-for-beginners