EXPO Low-Odour Dry-Erase Markers offer the best solution for marking on whiteboards and most non-porous surfaces. These dry-erase markers use a specially formulated, alcohol-based ink with virtually no odour. They feature vivid, quick-drying ink that is easy to see from a distance and a fine tip that creates detailed lines. Dry-erase marker ink erases cleanly and easily from whiteboards and most non-porous surfaces with a dry cloth or eraser.