The d said it was extra long but I have found that it is not quite long enough to cover the arms at both ends nearly as much as I would like for it to have!   It also does slip some probably because it does not quite fit.  Otherwise it is a good cover, looks pretty good (when I've straightened it out) and basically satisfies my needs!  The delivery service was fast and as I see things I need at a price I can afford I will order from you again.