Our 18" x 30" hanging yard sign panels are screen-printed double-sided on .150" solid polyethylene. This is the panel material other sign companies charge extra for! The panels are treated with a matte finish for enhanced appearance and to reduce scratching. Up to four holes may be drilled to your specifications at no extra charge. These panels also fit our R1 and R2 frames (as well as many other frames), which may be ordered separately.