Designed for short-throw projectors, the 27963 IDEA Panoramic Whiteboard Screen from Da-Lite is designed to cover the wall of a classroom, is hotspot-free under projection, and is magnetic. It can be used with an ultra-short throw projector as an interactive screen or as a conventional whiteboard with dry-erase markers. A 24" tray for markers makes the IDEA Panoramic ideal for any classroom. The screen features an overall viewing area of 46 x 144" and a center panel viewing area of 46 x 73.5".