Whiteboard cleaner and conditioner pH balanced formula is made using plant-based ingredients. Recognized by the EPA's Safer Choice (DfE) Program; meets U.S. EPA Safer Product Standards. Removes dry-erase ink, dust and dirt from all whiteboard and dry-erase surfaces. Regular use helps Quartet® whiteboards resist ghosting and staining. Suitable for all board types including porcelain, melamine and glass surface marker boards. Easy to use. For best performance clean board with eraser first, then spray cleaner directly on board surface and wipe with a soft cloth. Cleaner is readily biodegradable, non-toxic and low odor. 17 oz. bottle is rectangular to sit neatly on a marker tray without falling.