There's only a couple of factors on why I gave this product the rating I did. One, they took forever to get here. They actually arrived 5 days later than the arrival date and when they did I found out they were a robin's egg blue not dark blue like I had been expecting. My guess is whoever filled the ordered is slightly colorblind. I am not returning them, because that would be stupid on a 3 dollar order, not to mention it would probably take another month to order the right color. They won't go to waste, but I was pretty disappointed.
It's a really cool idea, but I immediately lost a couple of them due to normal handling of my laptop. Most of them fit in nicely, but then there are a couple that always pop out. One size does not fit all.