WARRANTY HANDLE FLEXCARE BLACK. Whitens teeth in just 1 week, FlexCare Premium Whitening removes stain build up from coffee, tea, red wine, cigarettes and tobacco. Removes up to 7x more plaque than a manual toothbrush. Improves Gum Health in Two Weeks, FlexCare cleans along the gum line, removing plaque while stimulating gums. Three flexible brushing modes for customized oral care: Clean mode is ideal for complete, whole-mouth cleaning. White mode is optimized for stain removal. Massage mode improves gum health by stimulating gums with an invigorating and pulsing motion.