1、Designed for 13.3in PC: This PC monitor protector is specially designed for laptop with 13.3 inch or 16:10 screen, ideal for students, office worker and programmer in home or office. 2、Viewing Angle Limits: The viewing angle of this laptop private screen will be limited from 30 to 60 degrees. Everything is visible only to persons in front of laptop, while people on either side of it cannot see anything. 3、Blue Ray Blocking: This laptop screen protector is designed with filter layers that can block 65% blue ray and 96% UV, also resistant to dust and scratches. 4、Easy Installation: Comes with double sided adhesive tapes, this 13.3 inch monitor filter can be easily mounted onto your laptop, saving your time and effort. 5、Multi Purpose: This laptop monitor filter is ideal for airports, airplanes, trains, coffee shops, office environments, financial institutions, and other public spaces.