Product description laptop privacy screen 13.3 inch anti-peepeffect computer monitor smooth surface frosted surface double-sided adhesive installation Tips The anti-peeping effect of the laptop privacy screen 13.3 inch varies with the brightness adjustment of the computer monitor Laptop screen privacy shield 13.3 is divided into smooth surface and frosted surface both sides can be used The smooth surface has a stronger anti-peepeffect and the matte surface has a stronger anti-glare effect Before installation please remove the protective layer on both sides of the 13.3 inch privacy screen for laptop If you use double-sided adhesive installation please remove the 2 layers of blue protective film from the nano-grade double-sided adhesive sheet