Black Workbox, 1.5" deep, 1" O-ring Binder The WorkBox is available in six colors and in two sizes: 9 1/2" wide x 12 7/16" high x 1 1/2" deep and 9 1/2" wide x 12 7/16" high x 2 1/2" deep. Acid free - Archival safe - No PVC. Long life hinges and latches. Removable binder rings and Detachable handle. 1 1/2" D-ring capacity-75 negative preservers, 50 print preservers, 25 slide preservers or 15 CD preservers.