The pen is cartridge-fed using a gravity-flow system

The Vektor pad's 70 gsm coated paper is built to handle alcohol-based markers specifically: the coating keeps ink resting on the surface rather than soaking straight into the fibers

while the same ink becomes permanent if used on a porous surface like a chalkboard or matte wall

so gold lettering or accents stay visible and bright on dark backgrounds rather than washing out

Cardboard model of the Berlin metro

ballograf epoca p ballpoint pen white Sabe The pen is cartridge-fed usingBallograf's Epoca P in white is Swedish engineering that's stood unchanged since 1961 because good design doesn't need improvement. Created for the Swedish Postal Service to combat hand fatigue, its ergonomic faceted barrel remains legendary. Hand assembled in Sweden with consistent precision. Premium oil based ink resists fading and handles extreme temperature ranges without skipping. Delivers 8,000 meters per cartridge roughly nine times the average