10 Transparent Fluorescent Blue Colored CD Jewel Boxes #CDBS10TFB - Empty Replacement Jewel Cases for CDs! GLOWS IN BLACKLIGHT! These unique colorful jewel boxes & trays help brighten up your collection Standard 10mm Thick! Makes identifying your CDs much easier if they get stolen! Trays (disc holders) NOT INCLUDED! These jewel boxes are 5-9/16" x 4-7/8" and ~0.43" (10.4mm) thick.