The Opus 88 Flow transparent red fountain pen features all the essential characteristics of the company. It is made from transparent acrylic resin with a red cap and chrome-plated finishes. The octagonal cap is an innovation from previous lines. It functions as an eyedropper with a glass dropper, filling with 3.5 ml of ink. The piston located in the body controls the ink flow, allowing the adjustment of the flow amount via the button at the top. It features a strong and flexible clip. The nib is a stainless steel, engraved #250 from Bock.

• Pen Length: 15 cm (closed)
• Weight: 15 grams

The writing instruments from Opus 88 reflect the modern art of writing, with a particular emphasis on functionality. The company's founder, Michael Hsu, has earned a reputation as an exceptional maker since 1988.