Expo Wet-Erase Markers Assorted Ink - 12 / Pack Adapt and evolve your ideas with ease using EXPO Wet-Erase. They make vibrant, sharp marks and are perfect for capturing plans that last, labeling with flair or creating colorful displays on glass, whiteboards and other nonporous surfaces. They are permanent until you want the marks gone. Thanks to water-activated erasing technology, they wipe clean with water for a fresh start.