Diamine Inkvent Red Edition Standard Bottled Ink in Red Robin - 50 mL rotring-refills Refill: Caran d'Ache Goliath ballpoint

Refill: Caran d'Ache Goliath ballpoint refill

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)

Finish: Matte Blue Barrel Finish

15mm mechanical pencil has a black "chalkboard-like" finish with the equation written in white

Pen Material: Ebonite

Diamine Inkvent Red Edition Standard Bottled Ink in Red Robin - 50 mL rotring-refills Refill: Caran d'Ache Goliath ballpointDiamine Inkvent Blue Edition features shimmer or sheen fountain pen inks that have a subtle sparkle in either gold or silver once dry on paper. This high quality, safe ink for fountain pens gives your writing an impressive glam, sparkle, and shine. Each color is contained in a 50mL glass bottle and is manufactured in the UK.