Thank you for viewing. This is a bulk sale of CD cases and disc cases only. Transparent: 4 Semi-transparent: 9 Thickness: Slim type, for one disc In my opinion, the semi-transparent ones seem to be made of a more durable material than the transparent ones, and are less likely to break. These are used items stored at home, so there may be minor scratches and scuffs, but I think they can still be used. When shipping, I plan to pack them with cushioning material, protect them from water damage, and use recycled materials for packaging. I am careful, but please forgive any oversights as inspection and measurements are done by a non-professional. Thank you for your understanding of used items stored at home. #CD case #Storage case #Plastic case