These are premium empty jewel cases - just like CDs come in when you buy them in the store (except for without the tray)! They are the standard 10.4mm (a.k.a. .43") thick and will hold most CD trays.
Trays not included!
These premium boxes are machine compatible and are made of a heavier material than other clear cases. Perfect for anyone running the jewel cases through a machine or for anyone looking for extra support in their jewel cases!
Oftentimes the only part of the CD case that needs to be replaced is the scratched, cracked, and otherwise worn jewel box. Buying the jewel box only saves in shipping and merchandise cost!