Lineco is a leading manufacturer of archival storage boxes for preservation of photos, paper documents, and artwork. Trusted by museums and archives, ideal for your family treasures Great use for files, prints, photos, art. This storage box will preserve your items. Including vintage products such as baseball cards, holiday and birthday cards, notes, and more Acid-free and Lignin-free boxes manufactured in the US from Black 60pt archival boxboard with metal edge construction for additional strength The clamshell design has an attached lid with a thumb cut, giving you the ease to open and close Overall Size: 18.5"x 24.5"x 1.75" fits up to 18" x 24" Documents, Newspapers, Certificates, Delicate Pictures, Important Prints, or Old Photos Lineco Folio Storage Boxes are a stylish combination of form and function. These archival boxes are designed for long-term storage, yet retain an elegant and supple feel and appearance. The clamshell form features a thumb cut design that makes for rapid access to the contents. In addition, the edges are constructed of metal for added strength and durability. The boxboard texture also adds to the longevity factor these boxes offer. For an economical and classic looking storage box, these folios are hard to beat.