Magnifying Glare Filter allows those with Macular Degeneration, AREDs or visual impairment, to adjust the distance between the filter and your monitor for custom screen magnification. Filter adjusts to fit 15" LCD/17" CRT monitor, while the special coating reduces glare to help prevent headaches and eye strain. Filter flips up and out of the way when not needed. Artful, contemporary styling with state-of-the-art features complements any workspace decor. Made of tough, impact-resistant plastic. Minimal assembly required. Please Note: These screens come in different sizes. Be sure you are ordering the correct size for your monitor.