Remove ghost marks, smudges and other stubborn dry-erase stains to make whiteboards look pristine with this Sustainable Earth by Staples 8-ounce multi whiteboard cleaner. Make whiteboards shine by removing stains, smudges and ghost marks with this 8-ounce bottle of multi whiteboard cleaner. This solution contains bio-based cleaning agents that effectively clean while remaining environmentally safe, making this bottle a good choice for green-minded businesses. This Sustainable Earth by Staples bottle of multi whiteboard cleaner has a low-odor formulation for minimum disruption, and the spray bottle makes it simple to apply.