Works with philips sonicare technology to break up tongue film at 31,000 brush stokes per minuten200 specially-designed microbristlesnPenetrates into tongue grooves to reach bacteria below the surfacenHelps drive chemistry deeper into tongue groovesnCompatible with all snap on handles excluding Philips Sonicare Essence and PowerUp modelsnThe philips sonicare tonguecare plus 2 pack replacement tongue brushes have over 200 specially-designed microbristles designed to penetrate deep into the grooves of the tongue to gently remove built-up bacteria from deep below the surface and drive chemistry deeper.