Stylish and durable presentation or storage box. Top and bottom remain flat when box is opened allowing easy access to contents. Passes PAT-safe for long term storage. Attractive black buckram exterior. .098 heavyweight binders board. Neutral pH adhesive used in box construction. Buffered, acid-free and lignin-free white paper interior lining. Ideal for matted and unmatted prints. Sized for the most popular digital print formats. Dimensions: 11-3/4 x 17-1/2 x 1-3/8