Add information to shelving in a jiffy with this 11" x 7" red clamp sign holder. The frame is made of the highest strength ABS and nylon engineer-grade plastic; no more rusted, bent, or broken frames. Angle of frame adjusts in 10° increments. The clamp sign holder can be used vertical or horizontal to accommodate your sign style. Flexible mount won't break off when hit-bounces back perpendicular to shelf!