The Archive-All Storage Box from Itoya is a great solution to storing delicate or important items. Made of durable black polypropylene in a clamshell design, the box also has a reusable spine label. Perfect for art, photos, and documents, it is archival-safe, and acid-and lignin-free. Actual dimensions of this 9x12 box is: 9.5" x 12.5" x 1.75".