Philips SH91/50 Replacement Shaving Heads
Advanced precision for a closer shave. SteelPrecision blades perform over 150,000 cutting actions per minute for a close shave. The 72 strong blades feature self-sharpening technology and are made in Europe.
Replace your shaver heads to restore 100% performance. It is recommended to replace the shaver heads every two years to regain full performance.

Technical Specifications:
How to replace the shaving heads: Press the release buttons to detach the shaving head holder. Turn the retention rings counterclockwise and remove them. Remove the old shaving heads and insert the replacement heads (the slots should align precisely with the protrusions). Return the retention rings and turn them clockwise until you hear a click. Insert the shaving head holder back and close it.
Compatible with shaver models from the 9000 series (S9xxx) and S9000 Prestige (SP98xx).
Package includes: 3 shaving heads.