This cover is correct aspect and it is expected a good quality given the fairly substantial price. When we introduced this cover, we pulled on the cords to tighten the fabric on top of the board as provided but we did without excessive effort, the seams of the cord jacket have cracked on twenty centimeters. We still managed to do a DIY fix for this cover but we are still very disappointed. If I had kept the package, I would have returned but now I guess it's too late.