Philips sonicare hx606416 diamondclean standard sonic toothbrush headsbull superior cleaningbull whiter teethbull sonicares best performance for cleaning and whiteningbull snap on brush headreminder bristles ensure you are getting an effective clean diamond shaped medium stiff bristles provide a firm but gentle experience and sweep away plaque 44 more bristles for a more thorough cleanremoves up to 100 more plaque than a manual toothbrush