ROTRING Art Pen €21.40/~£16.97. PAPERCHASE: £16.50. AMAZON: £12.21. Premium calligraphy and lettering pen with ergonomic body. Precise nib crafted from the finest stainless steel. Ergonomic body combining the balance and nib shape of the quill pen with the convenience of a modern fountain pen. Two ink cartridges included. SIZES: Sketch Extra Fine. Sketch Fine. Lettering Medium. Lettering Broad. 1.1mm. 1.5mm. 1.9mm. 2.3mm.