You are bidding on a Braun 3000 Series Shaver Foil.  It fits on these models: 3010,3500,3510 and 3012,3512 and 3025,3525,3550.  These razor parts come from my closed drug store, so they are new old stock.  Please check your model first before bidding on this foil.  The instructions on how to change the foil are on the back of the package.  Please feel free to make an offer!