Our fineOne by Neuland® Outliner is the finest of them all: he gives you the ability to sharpen the details without any concerns of smudging.
This cost-efficient refillable water-based ink is odourless and will not bleed through your paper and can be refilled up to 45 times with one Outliner refill ink bottle!
water-based permanent ink, refillable,
round nib, line width approx.: 1 mm