Potentially a price error?
Cheapest I could find after a quick google search it's $109.
I guess if you have a 27" Widescreen it's a good deal.
Description
Limits viewing angle to 30 degrees, hiding personal or confidential information from anyone trying to look from the side. Reduces harmful blue light by up to 30 percent•Can be installed using the included frameless tab holders or double-sided tape
•Limits viewing angle to +/- 30°
•Reduces harmful blue light by up to 22%Trust Kensington, the choice of IT professionals, to help protect the sensitive information on a monitor and reduce the chances of wandering eyes viewing confidential data. FP Series Privacy Screens limit the field of vision to +/- 30 degrees so a person off to the side only sees a dark screen. The reversible privacy screens also use an anti-reflective coating to reduce glare, and they filter out harmful blue light by up to 30%.
Limited Viewing Angle
The FP Series Privacy Screens narrow the field of vision on the monitor to +/- 30 degrees, helping you keep the information on your screen private and reducing the chances of a visual data breach.Reduces Blue Light
Filter out the harmful rays by up to 30%, easing eye strain and reducing the chances of blue light interrupting your natural sleep patterns.Easy Installation
The privacy screen can be mounted with the included frameless tab holders that attach to the edges of your monitor, letting you quickly and easily insert or remove the privacy screen. You can also mount it with double-sided tape that adheres directly to the screen for a cleaner look.Reduces Glare
Anti-reflective coating reduces glare from any outside light sources that can interfere with your viewing clarity.Reversible
Either side of the privacy screen can be used to different effect. One side has a matte finish to maximize glare reduction, is smooth to the touch and reduces traces of fingerprints. The other side is glossy and provides a clearer view of the monitor screen.
Doubt it’s a price error. There was also the Kensington Laptop Stand for about $22.39 not long ago too