StarWalker Doué Fountain Pen Piston ConverterMontblanc StarWalker Dou Fountain Pen Piston Converter, 132535 The new StarWalker collection is inspired by space exploration, celebrating the emotion, as described by space travellers, of seeing our blue planet floating in the vast expanse of space. With a precious black resin barrel, complimented by the platinum coated cap and a hand crafted 14ct gold nib. A special feature on this fountain pen is the StarWalker emblem with a blue translucent dome