Durable plastic panels with green-tinted, decorative beveled edges give the elegant look of glass. Panels come apart for adding signage and can be displayed vertically or horizontally. Wall-mount units secure contents with 4 metal knobs that screw on and off. Tabletop units have removable silver posts that extend 3/8" from the front of the sign. Base posts extend 3" behind frames for support; top posts extend 1/2" behind.