This seal is fitted into the inner channel of the door window frame on all Saloons and the Coupe'. It is a rubber U shaped channel seal with that fuzzy stuff on the inside of the U. Saloon windows ride up and down in their frame against the fuzzy stuff. This seal provides a smooth ride only if the fuzzy stuff is against the glass and rubber side against the inner chrome frame! If you stare at the picture long enough it will all make sense. This item is one piece for one top for one window.  Each door requires one of these for the top and and two for the side.  You do need to order three pieces to do a complete door.