Within 18 months, your 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 recommends changing your shaver's foil and cutter block every 18 months to maintain your shaver's maximum performance. For an efficient shave every day.Fitment: for Braun Series 3 (320-4, 340 w/d-4, 350-4, 380-4, 390-4) and Triple Action FreeFloat shavers Compatible with: Series 3 300s, 310s, 320s, 340S, 350cc, 390CC, 3000BT, 3010s, 3040s, 3050cc, 3070cc, 3080s, & 3090cc Electric ShaversShaver head should be replaced every eighteen months, Replacing your razor head gives a 25% better shave. For performance; clean regularly.This item is an economical afforable replacement part. you can renew your old shaver head with such good price replacement partColour:Black+silverMaterial:Plastic + MetalPackage Contents:1 * Shaver Head1 * Clean BrushOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.