The U.S. Army binder covers are sophisticated, durable, and command attention. These great looking binder covers are a frosted acrylic with a solid aluminum piano hinge spine. The artwork is laser-engraved. These acrylic binders are available in a variety of colors. The enlarged image shows this frosted acrylic, a blue tinted acrylic with screened artwork, and a smoke black acrylic with laser-engraved artwork.