@bitingmidge’s for round sanding disks:
https://www.printables.com/model/124998-sanding-disk-storage-box-and-lid
Mine (1 of 2) inspired by his, but for “Mouse” sanding papers. This one is is the “DOUBLE” bank version:
https://www.printables.com/model/455757-mouse-sanding-paper-box-lid-and-grit-divider-tabs-
Mine (2 of 2) inspired by his, but for “Mouse” sanding papers. This one is is the “SINGLE” bank version:
https://www.printables.com/model/455759-mouse-sanding-paper-box-lid-and-grit-divider-tabs-