The Neuland Outliner is the only Neuland marker with permanent ink, meaning that its drawn contours will not get blurred when coloured with 'water-based' markers. The 45ml refill bottle allows you to comfortably refill the outliner using the refill opening on the rear end of the marker. Be sure to follow the relevant refill instructions.
1 bottle with measurement and injection unit,
45ml, water-based permanent ink