Frisk Artists Artcoe RULING PEN

The Artcoe Ruling Pen is perfect for applying mask to your paper.

Dip the ruling pen in the masking fluid and 'scratch' onto your paper, 

creating very fine lines that will be masked against the paint. 

Once you have painted your picture, you can remove the 

masking fluid to reveal very fine lines of unpainted areas on your paper.

Great for grasses, small branches, rope, and other fine detail.