The Pilot Custom 823 is a large translucent resin fountain pens with a 14K gold nib and vacuum filler. Pilot Custom 823 is a demonstrator style pen with a large ink reservoir from Pilot. Pilot Custom 823 fountain pen is in the top 10 trending fountain pen list with Vacuum piston filler. The sheer high ink capacity of the pen makes it a work horse and a preferred writing instrument for users who write a lot and don’t like the hassles of frequent ink refilling. The Pilot Custom 823 fountain pen features a 14k gold nib, matching the gold trims of the pen. The Pilot Custom 823 an excellent traveling companion because it's essentially leak-proof. Pilot Custom 823 comes in two gorgeous colors - Amber brown and Smoke Black with gold plated trims.