These shoe-box style boxes are offered in our .065 MicroChamber boxboard. MicroChamber boxes offer an advantage over other archival boards as only MicroChamber materials are able to trap and neutralize potentially harmful acids and other by-products of deterioration released by the Blu-Ray Disc itself over time. They have metal corners and 1-1/2in. detachable lids. These boxes have been redesigned and now have 1/4in. clearance at the top of the base, which allows easy removal of individual cases from the full box. Each box measures 10 or 12 inches x 6-7/8 x 5-3/8.