Lightweight but heavy duty If you enjoy a lighter weight writing instrument, the OMAS Art Deco may be the perfect fountain pen for you. The vibrant yellow, red or black colors are crafted from cotton resin to reduce weight, yet provide superior strength. The titanium nib is polished and sports the classic OMAS arrowhead engraving. Nibs are available with a fine or medium point. Order bottled ink available in a wealth of colors for this piston fill fountain-pen.