Bi-Office Letterboards are a unique means of welcoming guests and business. You can make your message stand out by simply guiding numbers or letters along the grooves on this black surface. Simple panel with a black surface and precise grooves. A black aluminum frame with ABS black and silver corners is one option. ideal for information display. discrete but successful attention-getter. Perfect for community centers, hotels, and conference centers, among other places. includes a wall fastening kit. large variety of number and character sizes. Designed in Portugal