Noodler's Polar Purple Fountain Pen Ink - 3oz Bottle Color__Torquay Ocean Blue__robert-oster-signature-torquay-ocean-blue-50ml-bottled-ink-for-fountain-pens It is as fraud-proof as

It is as fraud-proof as Noodler's Bullet Proof Black

Lamy rollerballs are a good alternative to fountain pens or ballpoint pens

Sailor Kiwa-Guro ink cartridges are filled with super black pigmented ink and are designed for all Sailor fountain pens except Chalana

Slightly hygroscopic: absorbs moisture during use

Five (5) pencil erasers per package

Noodler's Polar Purple Fountain Pen Ink - 3oz Bottle Color__Torquay Ocean Blue__robert-oster-signature-torquay-ocean-blue-50ml-bottled-ink-for-fountain-pens It is as fraud-proof asEternal Polar Purple resists the effects of time moisture humidity UV light acids water exposure and many common detergents such as dish soaps and household ammonia as well as alcohols and acetone. Polar Purple as with all Noodler's ink is water based pH neutral and will easily wash off your pens. 3 ounces of ink per bottle. Freeze Proof to 114 degrees F