This Caran d'Ache 849 Paul Smith ballpoint pen, edition 4, in blue and green, with case, is the result of a special collaboration that applies the characteristic colored stripes of the British designer to the hexagonal body of the iconic 849 model. The case protects the piece and enhances its value as a collector's item. A special edition from the Swiss brand Caran d'Ache for collectors and design enthusiasts.