- Keep your classroom engaged, create compelling presentations, and stay organized at home with Expo Low Odor Dry Erase Markers. These whiteboard markers are available in a bold range of colors that produce consistent marks with less skipping. Use Expo dry-erase markers to track, schedule, and brilliantly present your point. Intense, bold colors take center stage even from a distance. Each box includes 12 markers. The chisel tip marks broad, medium, and fine lines. Low odor dry-erase marker ink is ideal for classrooms, offices, and homes. Consistent, skip-free on whiteboards and most non-porous surfaces. Bold color is easy to erase and easy to see from a distance. Box of 12 Blue dry erase markers. Age: 4+ years/Grade PK+