FILMEXT package comes with the white mounting backer to keep your filter well when not in use on screen and easy taking on going. ?What's in Box?Surface laptop 5/4//3/2/1 -15 inch Privacy screen filter×1 pcs, white mounting backer×1pcs, installation cleaning kit×1set. ?Privacy Effect Tips? Privacy feature appears difference under different screen brightness and user environment, the lower screen brightness to 50-75%, the better privacy, the stronger sunshine light, the better privacy feature too. If you have any doubts on product or installation, we will do everything within our power to make sure you are satisfied. ?Applicable and multi-scene?FILMEXT Surface Laptop 1/2/3/4/5 -15 inch removable privacy is suitable for a variety of public places, business meetings, open-style offices, financial institutions, cafes, airplanes, trains etc., protects your sensitive information, your passwords, personal content etc., which might be leaked. ?Bubble Free Design?Surface laptop screen protector 15 inch adopt the latest black frame silicone seal design, easy to install and remove, 100% bubble-free. The Privacy screen protector for surface laptop 15 inch with fingerprint resistance, and excellent touching sensibility. Installation tips: clean screen and ensure it is dust-free, align the product to screen, gently press over on the frame to remove the bubbles and let the silicone adhered to the frame. ?Anti-Glare & Anti Blue Light?Say goodbye to eye fatigue and sleepless. FILMEXT Surface privacy screen protector can reduces stress on your eyes by blocking blue light and preventing reflection from strong light, daily glare & UV light. ?Compability?FILMEXT Surface Laptop 15 inch privacy screen is perfectly compatible with Microsoft Surface Laptop 5th Gen -15 inch 2022/Surface Laptop 4th Gen -15 inch 2021/Surface Laptop 3th Gen -15 inch 2019 / Surface Laptop 2th Gen -15 inch 2018 /Surface Laptop -15 inch 2017. ?Blocking Side-Snoopers?FILMEXT Surface Laptop 1/2/3/4/5 -15 inch removable privacy angle is 30 degrees ±5, transparency is 60%±5, thickness is 0.35mm. Data is only visible in front of the display, appears a darkened or black screen from side view, with anti-glare and blocks 35% blue light feature, protects your eyes and prevents reflection from strong light, reduces stress on your eyes from daily glare & UV light and helps protect your screen from damage and dust. ?Surface Laptop 15 inch Privacy Screen?FILMEXT high-grade Surface laptop privacy screen 15 inch is perfectly fit Surface Laptop 1/2/3/4/5 15", Surface Privacy Screen filter shows a black edge with removable silicone seal, easy on and off, bubble free design.