Create high impact marks and track schedule and present clearly. High-quality ink-delivery system ensures consistent skip-free results while bold vivid colors make it easy to see what s written from a distance. EXPO Low-Odor Dry-Erase Markers always erase cleanly and easily from whiteboards and other non-porous surfaces such as porcelain melamine and glass simply with a dry cloth or a standard whiteboard eraser; but for optimal results EXPO whiteboard erasers are recommended. As their ink is specially designed to be low-odor and quick drying they re the perfect dry erase marker for use just about everywhere: classrooms offices homes boardrooms and more.