Expo offers dry-erase and wet-erase markers for use on non-porous surfaces such as whiteboards, windows, and mirrorsLifestyleSep 23 at 9:46 AM – Sep 23 at 11:16 AM5 outletsUnited StatesBoston HeraldHave a whiteboard? Try these Expo markers Sep 22 at 10:28 PMThe Denver PostHave a whiteboard? Try these Expo markers Sep 22 at 8:28 PMThe Mercury NewsHave a whiteboard? Try these Expo markers Sep 23 at 2:28 AMThe Orange County RegisterHave a whiteboard? Try these Expo markers Sep 22 at 7:28 PMThe San Diego Union-TribuneHave a whiteboard? Try these Expo markers Sep 22 at 7:28 PM