Braun CoolTec 40B Electric Shaver Head ReplacementProduct OverviewGet back 100% performance on your Braun shaver for a fraction of the original costCompatible with all CoolTec modelsEasily replace your Braun shaver parts every 18 months to maintain peak performanceSmall investment, peak performance 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, your Braun shaver will cut an average of 6,000,000 hairs. In accomplishing this substantial task, the cutting parts will gradually wear out and your shave may become less close and comfortable. That\'s why Braun recommends changing your shaver’s foil & cutter block every 18 months to maintain your shaver’s maximum performance. For an efficient shave every day.