Base Gasket for Briggs & Stratton 271916 / 470-088

I just received my previous order it was sent in a timely manor. I saw a great price on mower blades so I thought that I would get a couple sets, as I live in Texas where their is a lot of sand with the grass. I am trying a set at the present time, so far they are lasting longer than the dealers blades. I believe that they will last more than two cuttings as I mow two acres every two weeks.