The GRAFX™ Art Masking Liquid Pump Marker contains a special masking liquid giving the ability rub off. All comes in a manufactured application tool.
And this is how it works:
Apply the masking liquid on the surface not to be painted, next colorize, let dry briefly and rub off with a finger or a rubber.
MAIN FEATURES: pump marker with colored water-based masking liquid, exchangeable 2 mm or 4 mm Round-Tip, for all surfaces, refillable, easy to peel of without residues