AcePlus 12 Empty Calendar Jewel Stand-Up Boxes in Standard Size Clear Cases for Art Display. The calendar case is designed for holding calendar slips or promotional booklets and used as desktop display of calendar art, graphics, or promotional inserts. These cases open up and flip around so that a calendar (or other any small artwork) can stand up on your desk, shelf, table, or other flat surfaces. The jewel box design makes it so that they're also a great container to insert small items. These cases will NOT hold a tray and are not meant to store a CD or DVD disc. Case Size: 5" x 5.5" x 3/8". Fits graphic inserts for sizes 5.4" x 4.65".