Liquid Chalk Markers 12Colours Set (AY-6166)

* Chalk pens work on almost any surface. * Erase easily from non-porous surfaces such as blackboards, mirrors, windows, glass or chalkboard. * Use wet paper towel to remove the ink from chalkboards within 10min of writing or painting on it. * Once the ink fully dries is not possible to erase it from the chalkboard anymore. * ALWAYS test on a small area first to see if it wipes off before continuing on your project.