This is easy to put on and very  thick and sturdy.  I have been using it for a week and it seems to  work very good..  the seams are  strong and the zipper is closed with velcro.  It works very well.  The corners are made to expand to fit different sizes  without ripping open.  I have tried other products that have ripped  while trying to put them on and this one  is so strong we never had that problem