Infuse your writing with the bubbly personality of the OPUS 88 Koloro White and Blue fountain pen. For this eyedropper-fill fountain pen, OPUS 88 combined a shimmering blue resin with a contrasting pearl white in the cap and blind cap.

Engineered for serious fountain pen enthusiasts who love to use their pens to write at extreme length, the KOLORO is one of the few modern pens to feature an eyedropper filling only system that has a shut-off valve. More commonly found in Japanese vintage fountain pens, the valve regulates the ink flow to prevent ink burping on the page.

Opus 88 Koloro White and Blue Eyedropper Filling Fountain Pen Specifications

• Material: Shimmering, light blue resin contrasted with pearl white resin.
• Nib: #5 size stainless steel nib (made by Jowo)
• Pen length, closed: 5.59 in. / 142mm
• Pen length, open, cap off: 4.96 in. / 126mm
• Pen length, open, cap posted: 6.30 in. / 160mm
• Pen diameter, maximum: 0.61 in. / 15.5mm?
• Grip diameter: 0.39 in. – 0.43 in. / 10mm – 11mm
• Eyedropper filling system with a built-in shut-off valve
• Gift Boxed with an eyedropper
• Made in Taiwan