I bought this as a replacement for the last cover which is now worse for wear.  Removing the old one is simple enough.  The new one really is very basic.  A flat cover with a drawstring around it which you tie off using a piece of plastic. I have left the padding from the old one in lace as the ribs of the board would befelt through the new cover on its own.  I am satisfied with the current set up but was surprised at how basic the cover was.