This 60ml glass bottle of Private Reserve Invincible Blue fountain pen ink has a ridged cap for easier opening and closing. Private Reserve Invincible Blue fountain pen ink is a mid-toned shade of blue.

Under new ownership in 2021, Private Reserve Ink features bright, vibrant colors with excellent flow. 

Having trouble deciding between colors? Use our Ink Comparison Tool to quickly and easily view different colors side by side.

Volume - 60ml

Bottle Material - Glass

Color Group - Blue

Special Properties - Water Resistant, Archival