Pilot Custom 823 Amber Demonstrator fountain pen. A newcomer among the custom series, Custom 823 is made of transparent resin. The translucent cap and barrel, visible ink supply, and unique writing system make refilling effortless. This fountain pen features a 14k gold nib, matching gold trim, and a vacuum filling system. This pen is easy to flush out but almost impossible to get the last of the flush water out of the barrel. This has never been a problem for us except the clear barrel shows a few drops of water. For lovers of colors, it is equipped with a piston system that will allow to test all Iroshizuku inks shadows. The pen comes in a beautiful presentation gift box and includes a 70ml bottle of Pilot black fountain pen ink. Features: Closed Length: 149mm Posted Length: 164mm Max ink Capacity – Piston Vac: 2.55ml Filling System: Vacuum/Power Filler Cap Type: Threaded Clip: With Clip Postable: Postable cap Pen Weight: 28.8 g