50 Standard PREMIUM Empty Clear Plastic Replacement CD Jewel Boxes (10.4mm Thick CD Cases) (Trays Sold Separately) #CDBS10CLPR These are machine-compatible CD jewel cases! Perfect for machine automation or for replacing jewel cases on your collection! Heavier plastic than normal jewel cases! These jewel boxes are 5-9/16" x 4-7/8" and ~0.43" (10.4mm) thick. Trays ARE NOT included - just the jewel box! 10.4mm thick - same size & thickness as jewel cases you buy in stores