Noodler's Ink - Polar Blue

Noodler's Polar Blue is permanent "bullet-proof" ink and is freeze-resistant even in very cold climates. Polar Blue is part of the Eel ink series and contains lubrication to help ensure smooth operation of your piston fill fountain pens. Safe for fountain pens of all types, this pH neutral ink provides archival quality. 100% made in the USA. Size: 3 oz bottle. 19208. (Color samples are approximate. Use this sample as a general reference only.)

Other "bullet-proof" Noodler's Ink:
Noodler's Black (001)
Noodler's Black (001) 4.5 oz bottle
The Heart of Darkness
Lexington Gray
Lexington Gray 4.5 oz bottle
Luxury Blue
Polar Blue 4.5 oz bottle
Year of the Golden Pig
Blue Ghost Invisible Ink