Bold color commands attention even at a distance which is perfect for the office and classroom. Quick-drying smear proof ink erases easily. Use to write on whiteboards glass and most non-porous surfaces.Features:. – Bold color commands attention even at a distance. – Quick-drying smear proof ink. – Erases easily. – Use to write on whiteboards glass and most non-porous surfaces. – Marker Type: Dry Erase