The Opus 88 Demonstrator fountain pen in Sapphire is a truly unique writing instrument.
It has a chrome plated clip and a black stainless steel #6 JoWo nib and includes a glass eyedropper to fill the pen with your favorite ink.
An ebonite piston and rubber gasket seals the feed off from the barrel when fully depressed, reducing the risk of leakage and burping.
By unscrewing the blind cap and loosening the rod at the rear of the barrel, you open up the ink flow to the feed.
During long writing sessions, leave the shut-off valve open to take advantage of the impressive ink capacity.
Having a completely clear pen body allows you to see both your current ink level and your nib while capped.
These pens often feature unique designs and materials, making them truly one-of-a-kind writing instruments. Overall, Opus 88 is a brand that is highly regarded by fountain pen enthusiasts for their quality craftsmanship, attention to detail, and commitment to innovation.