The Masquepen is such a simple idea, but makes life so much easier for watercolour artists. It’s a pot with a built-in nylon fine-point nib applicator that’s been carefully designed to help you apply masking fluid easily & very accurately. You simply use it like a pen to draw on the high-quality blue masking fluid, so there’s no more mistakes & no more ruined brushes. This Masquepen contains 30ml of masking fluid, & refills are available separately.