sh90/72 replacement heads new version for series 9000 (replaces sh90/62/rq12+) fit for philips norelco

sh90 replacement heads feature newly designed v-track precision blades that collect hairs in the cutting position and cuts hairs up to 30% closer to skin in less strokes. its dual blade system lifts hairs to cut comfortably below skin level for a closer shave. compatible with the following series: 9000 series compatible with the following models: s9021,s9151,s9371,s9721,s9731,s9911,s9031,s9041,s9111,s9161,s9171,s9311,s9511,s9521,s9711.