This is a set of slim, empty cases suitable for CDs, DVDs, and Blu-rays. All cases are clear (the back has a slightly frosted glass texture). This is a set of relatively clean cases selected from my used collection. While the size is the same for all, the manufacturers are likely different. I will send you a set of 12. Some signs of use may be noticeable. Please consider this a used item. #ClearCase #CDCase