Slappa HardBody PRO 600 CD Storage Case, SL-60001B HardBody ABS molded shells provide ultimate protection.Monster capacity yet small enough to be a carry-on Patented d2 Layered Pockets for disc & cover storage 4 latching key-locks provide extra security Honeycomb frame for maximum shell stabilization Holds 300 discs with covers or 600 discs without covers