Holbein MASKING FLUID Ballpoint Pen Type
Holbein’s W479 ball point pen style masking fluid pen allows you to more precisely block out detail areas and create textures or fine highlights in your watercolor paintings. Its fluid dries to a light blue color so it can be easily seen and removed cleanly with an eraser or by gently rubbing it away with your finger.
Note: Shake well before use. Do not leave masking fluid on paper for an extended period of time.