Ghent 4.5 x 8.5 Inches Aluminum Frame Porcelain Magnetic Projection Whiteboard with 1-Inch Maprail (PRM1-4-4) Porcelain-on-steel projection surface in low luster finish reduces hot spots. Magnetic surface resists scratches and stains. Aluminum frame with 1" maprail. Smart-Pak Tray includes protective end caps and is detached for easier installation and reduced potential for damage. Backed with a 50 year warranty. Made in the USA and is TAA compliant. Projection board features a special white, textured surface that reduces projection glare by 70 percent compared to standard marker boards Ideal for presentations, slideshows and educational purposes Magnetic surface functions as a projection board