These are replacement CD holders for longbox Sega CD or Sega Saturn games. These were modeled from the original panzer dragoon saga CD holder. A thicker card stock is used with this one but at the same time a softer card stock to ensure longevity of the CDs.
Each of these CD holders are put together by hand and will fit any long box for the Sega CD or Sega Saturn including the replacement Sega CD and Sega Saturn long box cases on that are on the market. These are sold as a single CD slip each. you can add as much as you need by selecting how many you'd like when ordering.