Adding text, diagrams, and even freehand doodles to a presentation improves it. Group meetings now revolve around the ability to write, erase, and rewrite information. Bi-Office has produced the most user-friendly products that enhance your training sessions, conferences, meetings, and lessons. thin frame made of anodized aluminum. In any position, the aluminum pen tray just clips onto the frame. Wall fasteners are provided. steel surface with a magnetic coating. In a range of sizes Produced in Portugal