8-pack of replaceable cross-bristled brush heads: The brush with a bacteria-protecting function, which can prevent bacterial growth on the brush. Also with a strong cleaning function, which can remove up to 5 times more plaque along the gum line than a traditional manual toothbrush. Floss Replacement Electric Toothbrush Head - A floss-like cleaning for healthier gums, the Advanced Pulse brush reaches deep between teeth for superior plaque removal, provides superior interdental cleaning. Precision Electric Toothbrush Head Replacement - For a tooth-by-tooth cleaning, soft bristles for a comfortable cleaning, perfect for beginners, tooth-by-tooth cleaning for superior plaque removal. Sensitive electric toothbrush heads provide superior and excellent cleaning of the entire mouth and teeth, but are still gentle on the gums and teeth. Suitable for children over 5 years old. The brush with a bacteria-protecting function, which can prevent bacterial growth on the brush. Also with a strong cleaning function. Made with soft and flexible DuPont Tynex bristles, better for your teeth and gum health. Side-to-side brushing sweeps away plaque while the moving power head penetrates hard-to-reach areas and stationary bristles polish tooth surfaces. Soft DuPont, rounded bristles in the center of the head protect teeth from harmful hard brushing. Fits most electric toothbrushes on the market. Package includes: 4 pcs 4 x Replacement brush heads