Caran d'Ache Chromatics Ink Cartridges in Magnetic Blue - Pack of 6 Color__Jade__noodlers-ink-piston-fill-flex-nib-jade-medium-point-fountain-pen It is approximately 16% bulletproof

It is approximately 16% bulletproof and is made up of dyes with multiple properties in order to generate the various shading and different tones under various light sources (it will look different in daylight versus fluorescent lighting for example)

Stiff cardboard backing provides support for writing and sketching on the go

Power to the Pen: Pilot makes exceptional writing instruments to suit all your needs

Color:Light Blue

It can also create gradated colors by transferring ink from one pen nib to another

Caran d'Ache Chromatics Ink Cartridges in Magnetic Blue - Pack of 6 Color__Jade__noodlers-ink-piston-fill-flex-nib-jade-medium-point-fountain-pen It is approximately 16% bulletproofCaran d'Ache entered the forefront of the luxury fountain pen ink market with their high quality Chromatics collection of inks. The ink is super smooth, matched with vibrant hues and safe for both vintage and modern fountain pens. Following their success the collection has been enhanced by the addition of six cartridges in international format. Chromatics INKredible Colors Collection uses Caran d'Ache's color experience to master the most intense