Size: 10 x 30 cm

strong opacity

MTN Technical Marker Fineliners can also be found in sets

which holds up well for fine geometric drawing or technical layout work

on the run otr 988 ball pen fluid 100 ml Colors:Violet Size: 10 x 30 cmOTR. 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