Oral-B Spare Brush Spare Heads, 3D White as one of the top, has an exclusive polishing accessory that whitens teeth starting from day 1, removing surface stains.    With CleanMaximiser technology, green fibers turn yellow when it's time to change your toothbrush head.    The unique fibers remove the plaque for more advanced cleaning than an ordinary manual toothbrush.    Dentists recommend changing the brush head every 3 months for superior cleaning    Compatible with all Oral-B handles except Pulsonic & iO