The Opus 88 Koloro Blue Fountain Pen is a high-quality writing instrument designed for those who enjoy the art of writing. Featuring an eye-catching blend of colorful ebonite and acrylic...

The Opus 88 Koloro Teal Fountain Pen is a high-quality writing instrument designed for those who enjoy the art of writing. Featuring an eye-catching blend of colorful ebonite and acrylic...

The Opus 88 Koloro Light Blue Fountain pen is a specific model of fountain pen manufactured by Opus 88, a well-known Taiwanese pen brand. The "Koloro" line of fountain pens...