The cover is high quality and seems it will be durable. The clips are made of plastic. Upon initial installation, one broke. The rest after fixing this once and needing to remove it to adjust, showed a stress and where they will break. While the cover is great, the clips could be manufactured and a better system created to affix this cover. Also, no instructions came with this product for installation. Fortunately I was able to find a video on youtube. What I found works best is to start in the middle of the back, hook the outside to the trim, then gently push down to snap the backside into place. I found starting at the back worked best otherwise the clips on the two back corners were too difficult to affix in place. While the cover itself is great, I gave this 3 stars due to the weakness of the clips. Replacement clips are $60 and it seems if I use this I could be buying new clips ever year. If the clips were stronger, I would give this four or five stars.