These fine point markers are able to create thin lines for detailed works of art. Ink pigment is made with easy-wipe formula that’ll leave your whiteboard looking as good as new. Smear-proof and quick-drying makes it safe for all uses. Dry Fast and residue-free wiping of whiteboards can be used on glass and most non-porous dry erase surfaces. Erase completely with a cloth or board eraser.