Named for the brightest star in the Canis Minor constellation, the Procyon\’s textured aluminum body offers an excellent weight balance when posted. The screw cap features Platinum\’sSlip & Seal Mechanism that keeps ink from drying out. The newly designed feed pulls ink from the back so you can fill your pen when only a small amount of ink remains in the bottle. The Procyon sports a smooth steel nib and arrives in a standard black Platinum box. NibMaterial:Steel Filling Mechanism:Cartridge, Converter