Overview Reviews Product Description These watercolour inks have been specially formulated for writing and drawing. These inks are miscible between them. Inks are for fountain pen, rollerball pen, glass pen, nib holder and brush. 30ml bottled ink. Light blue. Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Herbin Herbin Writing Ink 30ml Bleu Pervenche Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments