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. 10ml bottled ink. Cove blue. Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Herbin Herbin Writing Ink 10ml Bleu Calanque Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments