Feature:nbhbj Diamondclean toothbrush soft toothbrush tips4 best electric sonic replacement toothbrushesfeature:High quality universal nbhbjreplacement brush head, made of American Dupont tynex nylon end bristles, which can clean the surface of teeth and the depths of teeth. Effectively removes plaque without irritating the gums.how to use:Just replace the brush head as usualspecification:Type: Toothbrush headModel: BL552-4Material: POM plastic and nylon 612 and 304 stainless steelProduct name: Replace toothbrush headWorks with the following toothbrushes:HX6100 / HX6150 / HX6411 / HX6411 / HX6431HX6431 / HX6500HX6511 / HX6530 / HX6711 / HX6730 / HX6731 / HX6732 / HX6780HX6781 / HX6782 / HX6902 / HX6910 / HX6911 / HX6911 / HX6912HX6930 / HX6932 / HX6932 / HX6932 / HX6933 / HX6942 / HX6942HX6952 / HX6982 / HX6982 / HX9332 / 9382/9342nbhbj R710 / nbhbj R732 / nbhbj RS910 / nbhbjRS930 / nbhbjRS950packing list:4* Toothbrush Replacement Head