A 30ml waterbased red ink in Manuscript's stylish glass bottle, ideal for refilling your converter with ease. Supplied by Manuscript Pen Company Ltd as a perfect companion for your fountain pen and calligraphy needs. Elegant screw top cap and nice wide neck bottle for convertor use / piston filler. A lovely lay down of ink on the page. Waterbased ink. Ideal for beatiful writing, calligraphy and ink sketching. Manuscript Pen Company Ltd has a history of supplying writing instruments since 1856.