Montblanc Writing Instrument StarWalker BlackCosmos Precious Resin Fineliner, 129746. The StarWalker collection is about walking amidst the stars. It's about exploring the cosmos and foreign galaxies, about being part of one of the most mysterious and powerful of humankind’s adventures: space exploration. The StarWalker BlackCosmos collection depicts the depth of space through the shiny black precious resin and the black PVD-coated fittings. The patented StarWalker emblem technology features a grey translucent dome, beneath the floating Montblanc emblem.