Braun Series 3 21B Electric Shaver Head ReplacementProduct OverviewPEAK PERFORMANCE: to maintain your best shave, we recommend replacing the shaver head every 18 monthsADAPTIVE SHAVING: with pressure-sensitive blades that automatically retract to protect your skinEFFICIENT & FAST: with this shaver head’s 3 flexible bladesSIMPLE REPLACEMENT: easily attach your new shaver head - just by clicking it onQUALITY CRAFTSMANSHIP: 100% made in Germany and compatible with Series 3 electric shavers Product BenefitsEfficiencyRoutinely replacing the shaver head keeps your shave efficient, with less strokes needed for greater skin comfort.Replace every 18 monthsReplacing the shaver head resets your shaver to new and ensures it will remain in peak condition for years to come.German QualityEvery Braun shaver head is made with German craftsmanshipHow to replace your shaver head.For older models which have a foil and a cutter block as two independent parts you will need to change the parts in two steps:Remove the foil, either by pressing the release button if your shaver has one, or by pulling the foil.Rotate the cutter block by 90 degrees and pull it off, holding it at the ends to avoid touching the blades.To fit new parts, simply carry out the same procedure in reverse.Product DescriptionWithin 18 months, Braun shavers cut an average of 6,000,000 hairs. That comes with some gradual wear to the cutting parts, which can lead to a less comfortable shave. That\'s why Braun recommends changing your shaver\'s foil & cutter block every 18 months to get your shaver back to its best. Take care of your shaver, and it\'ll take care of you.