Expo Low-Odor Dry-Erase Markers feature vivid ink that's easy to see from a distance & provides consistent color quality. These markers erase cleanly & easily from whiteboards & other nonporous surfaces with a dry cloth or Expo eraser. Dry-erase marker ink is specially formulated to be low-odor making it perfect for use in classrooms, offices & homes. Use markers to track, schedule & present.