On The Run has been in the game since 1990, born out of the European graffiti magazine of the same name at a time when writers were hand-mixing shoe polish and industrial ink to get tools that actually worked. They practically invented the modern squeeze marker — and the formulas and valve designs they developed in those early years set the standard the rest of the industry followed.

The lineup covers squeeze mop markers with mohair Soultip nibs for controlled drips and high flow, pump-action paint markers with chisel and block nibs, jumbo broad-nib markers for fast coverage, and specialty inks including the legendary Hard To Buff — a permanently staining black ink formulated to resist fading, buffing, and weather. Almost everything is refillable and takes replacement nibs.