Opus 88 Koloro Fountain Pen in Blue Ebonite Nib Size:Broad The Diamond 580 represents the

The Diamond 580 represents the fusion of a traditional fountain pen with a modern industrial design

Pen Body Material: Solid

5 mm steel calligraphy nib

Length Posted: 6in (152mm)

Opus 88 Koloro Fountain Pen in Blue Ebonite Nib Size:Broad The Diamond 580 represents theThe natural, warm feel of ebonite meets the translucent effect of lightweight acrylic resin with the Opus 88 KOLORO collection. 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