In two years, your shaving heads cut 9 million beard hairs on your face. Replace the shaving heads to regain 100% performanceCompatible with S7000 and S5000The SH71 replacement shaving heads are compatible with all Shaver series 7000 (S7xxx) and the angled 5000 (S5xxx) range. They are not compatible with the Rounded Series 5000, which use SH50 replacement heads instead.SteelPrecision bladesWith up to 90,000 cutting movements per minute, the SteelPrecision blades shave thoroughly and cut more hairs* in one stroke. The 45 high-performance blades are self-sharpening and were manufactured in Europe.Easy replacement1. Press the release buttons and remove the shaving head. 2. Turn the rings counter-clockwise and remove them. 3. Remove the old shaving heads and insert the replacement heads (the guides should fit exactly on the protrusions). 4. Replace the rings and turn them clockwise until they click into place. 5. Replace the shaving holder and close it.This will make your shaver almost lik