This Hanging Privacy Screen Filter is high-transmittance at front side and the screen gets darker or even invisible when looking from an angle (30). And it also blocks UV and suppresses reflection of light to protect your eyes and relieve eye fatigue to some extent. Feature: Removable Detachable With hanging design, easy to use. Free from complicate installation. And hooks and film are separable, convenient to take it anywhere. High Transmittance It restores original colors that the screen displays as far as possible. Dark Screen for Others When looking from an angle (30), the screen gets darker or even invisible. One Privacy Screen Filter Makes More Personal Space No matter you are in office, public place, or using PC in library, you are free from the peep from others, making you work, study or play at ease. Eye Protection It blocks UV and suppresses reflection of light to protect your eyes and relieve eye fatigue to some extent. Specification: Material: PET Suitable for: 21.5-22'' Monitor with 16:9 Aspect Ratio Packing list: 1 * Hanging Privacy Screen Filter 2 * Hooks 1 * Cleaning cloth