The sizes for the Roadster wiper blades are 20" for the drivers side and 18" for the passenger side.

Alot of people will already know how to change wiper blades but we've been there countless time where someone's gone to change them and couldn't even work out how to remove the old blades.

First step is to lift the arm away from the windscreen and flip back like so...

If you look closely you can see a small clip, squeeze the clip into the arm...

As you squeeze the clip pull the whole wiper blade down to move it clear of the hook...

Finally pushing down to remove it completely...

Installation is reverse of removal...