Protect your valuables the way museums do. These storage boxes are constructed with strong metal edges to prevent crushing. They're also acid free and made with specially buffered board that helps to prevent damage to contents by environmental pollutants.The boxes have drop fronts for easy access. They're great for storing prints, negatives, scrapbooks, photo albums, and other doents.Lineco Museum Storage Boxes meet museum standards for archival quality storage. They are available in gray and black.