DuPont Bristle for toothbrush head and replaceable, and suggest to replace brush head every 3 months or sooner if brush head becomes loose due to damage. Clean: The standard mode for a whole mouth clean. White: Removes surface stains to whiten teeth. Polish: Brightens and polishes teeth to bright out their natural briliance. And we extra offer a mini bag for holding the toothbrush while you traveling.