marker inks

adheres to nearly all surfaces and is extremely permanent

In the book OUFF

Permanent oil-based enamel marker that comes in several different colours

There must be no writer in Europe

on the run otr 988 ball pen fluid 100 ml Sketch marker inksOTR. 988 Ball Pen Fluid is a highly concentrated alcohol based ink gel designed for mixing, not for direct use. It's thick, heavily pigmented, and built to be added to existing inks or paints to deepen color intensity, boost opacity, and increase pigment saturation. Comes in multiple colors including black, blue, red, green, and violet. Writers and artists use this to create custom ink blends stronger, darker, richer than standard inks. Mix it into