Quartet - QRTDFEB4 Dry-erase board eraser features a dual-action design that captures dust and scrubs the board simultaneously for a clean surface with no streaks, stains or dust. Its comfortable grip allows you to accurately wipe down surfaces to keep you from accidentally erasing important information. Compact size fits on most accessory trays to ensure it always stays within quick reach. Dry-erase board eraser works on all dry-erase surfaces.