To start with, I need to say the cases are not as good as you'd get when buying a commercial double CD, however they are perfectly adequate and good value for money. I chose this seller and their 'premium' product after reading reviews of other sellers similar (cheaper) products that say the cases are not clear and were twisted and didnt sit flat or close properly. These ones are were perfectly flat, crystal clear and worked just fine. The hinges are a weak point, particularly the inner black bit, but as long as they are handled carefully, they are just fine. All I can say is, I've ordered some more, they were that good.