I used this on an HP Compaq LA2205wg screen and it fit PERFECTLY. There are 2 sides to this filter (which doesn't stick on the actual screen), one glossy and one matte. I used the matte side to face me, and from a distance the screen looks completely black. At closer proximity to the computer monitor, things are visible and if someone's standing directly behind, the screen is clearly visible. However, it has immensely increased the level of privacy and I can work happily knowing that no one's watching me from behind. The filter can be lifted for cleaning and the see through stickers that you attach to the screen are to help keep it put. Even without the stickers, the filter will stay put.Buy it, it's totally worth it, although HIGHLY priced.