Product Information :
Kensington Computer Products Group Graphite
Manufacturer's product description
This SlimScreen is the latest in glare screen filters. SlimScreen's patented thin film has the same anti-radiation and anti-reflective properties as glass filters, but because it's flexible it fits the shape of your monitor, sealing it on. When installed it looks like part of your monitor.PRODUCT FEATURES:Anti-static;Eliminates up to 99% of reflection and radiation;Simple to install with sticky Velcro pads.
I'm no expert on these things so don't go on what I say here... But... I've brought a fair few different glare screen filters in the past and many haven't quite lived upto their jobs - with most being fairly bulky, cumbersom and a couple even totally useless. I do IT reqs and buying these things...