A small message on the mirror, on the window, in the shop window, or on the chalkboard of a restaurant, whether indoors or outdoors. With Wet Erase, you can decorate and paint on all smooth and non-porous surfaces such as glass, whiteboards, metal, plastic, porcelain, and much more. Once dried, the color of Wet Erase is also resistant to rain and can be easily removed at any time with a damp cloth.