Features 1. Engravable plastic: Designed for laser engraving, the double-layer acrylic material allows for fast, cost-effective engraving, resulting in a high-contrast permanent mark. 2. Metal signs: 4 high-quality 12in x 8in two-color engraved panels, which can withstand the sun, snow, rain and cold, suitable for both outdoors and indoors; 3. There are a variety of colors to choose from, including gold, silver and rose gold panels, as well as brushed and mirror surfaces. The bottom plate is black and engraved with black fonts. The engraved fonts and patterns are clear and conspicuous. 4. Wide application: not only interesting consumables for laser engraving, you can DIY or even engrave interesting paintings and works on the board, and it is also suitable for home garden signs, yard signs, office door plates, wall plaques. 5. It has been tested, please ask customer service personnel for specific engraving parameters. Specifications:    Product material: ABS plastic  Product size: 12" x 8" (20*30cm) Notes: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures.  Please allow 1-3cm measuring deviation due to manual measurement. Thank you for your understanding!  Packing List:    4 x Signs     Package List 1 x Industrial Siren Alarm