SH71 replacement heads are compatible with all Shavers Series 7000 (S7xxx) and angular-shaped Series 5000 (S5xxx). They are not compatible with the rounded Series 5000, which use SH50 replacement heads instead.

Reset your shaver very simply

1. Press the release buttons and detach the shaving head holder. 2. Turn the retaining rings counterclockwise and remove them. 3. Remove old shaving heads and insert replacement (notches should fit exactly onto the projections). 4. Place retaining rings back and turn them clockwise until you hear a click. 5. Insert the shaving holder back and close.