PHILIPS SH91/50 Trimmer 70 min Runtime 10 Length Settings  (Black)

SH91 S9000 Shaver Head Very Simply:- Press The Release Buttons And Detach The Shaving Head Holder.- Turn The Retaining Rings Counter Clockwise And Remove Them.- Remove Old Shaving Heads And Insert Replacement (Notches Should Fit Exactly Onto The Projections).- Place Retaining Rings Back And Turn Them Clockwise Until You Hear A Click.- Insert The Shaving Holder Back And Close.Replace The Shaver Heads And Get Back To 100% Performance:- Compatible With S9000 And S9000 Prestige- Sh91 Replacement Heads Are Compatible With All Shavers Series 9000 (S9xxx) And S9000 Prestige (Sp98xx).Projections).- Place Retaining Rings Back And Turn Them Clockwise Until You Hear A Click.- Insert The Shaving Holder Back And Close.Replace The Shaver Heads And Get Back To 100% Performance:- Compatible With S9000 And S9000 Prestige- Sh91 Replacement Heads Are Compatible With All Shavers Series 9000 (S9xxx) And S9000 Prestige (Sp98xx).