The Platinum Procyon, named after the brightest star in the constellation of Canis Minor. This design is a completely new body style. The pen employs Platinums famous “Slip-and-Seal” mechanism which keeps the ink from drying out in the pen for up to a year! This pen also features a new nib design as well as feed which allows you to use all the ink in a bottle. Comes with three specially-blended MIXABLE INK cartridges (one cartridge per color) - Dark Violet, Aqua Emerald and Gold Ochre.