Braun Series 5 Shaver Head CassetteWithin 18 months, your Braun shaver will cut an average of 6,000,000 hairs-equivalent to shaving an entire soccer field. Therefore, Braun recommends changing your shavers foil & cutter block every 18 months to maintain your shavers maximum performance. For a perfect shave every day. Fits Braun Series 5 Models: 5020, 5020s, 5030, 5030s, 5040, 5040s, 5050, 5050cc, 5070, 5070cc, 5090, 5090cc.Braun Electric ShaversDesigned and tested to last for six years of ultimate mens shaving with proper maintenanceUltraActiveLift Middle TrimmerEffectively captures problem hairs, neck and chin areas, Unique oscillating trimmer lifts and cuts flat-lying hairs in fewer strokesCrossHair Designed FoilOutstanding closeness captures stubborn hairs growing in different directions and even the shortest stubbleMacroMotion ShavingFeatures 40 pivoting shaver head navigates larger contours for maximum skin contactFeaturesBraun Series 5 Replacement Shaver Head CassetteUltra-Active-Lift Middle Trimmer cuts neck and chin hairsCrossHair Designed Foil captures stubborn hairsMacroMotion ShavingFeatures 40 pivoting shaver head navigates larger contours of your faceDesigned for Braun Series 5 Models: 5020, 5020s, 5030, 5030s, 5040, 5040s, 5050, 5050cc, 5070, 5070cc, 5090, 5090ccTechnical SpecificationsOffers remarkable shaving precision in both wet and dry conditionsReplacing your blade gives a 25% better shaveFor optimum performance; clean regularlyBlades should be replaced every eighteen monthsBrings back 100% performance Guaranteed!Fits Braun Series 5 Models: 5020, 5020s, 5030, 5030s, 5040, 5040s, 5050, 5050cc, 5070, 5070cc, 5090, 5090cc