Don't worry about the damage, radiation, and accidental scratching of your TV desktop monitor caused by children and family members watching TV, because our screen protectors have anti-blue light, anti-radiation, anti-glare, anti-scratch functions(HD film does not have anti-glare function ). Parameter: Name: TV Screen Protector HD/Matte Material: PET Size1: 42 inch(917x516mm) Size2: 43 inch(942x529mm) Size3: 46 inch(1017x570mm) How to measure: 1.Please measure your monitor before making a purchase, Measuring the inner screen, excluding the Frame. 2.Excluding the frame We can also customize TV screen film in other sizes. About installation: 1. The first is to clean the screen clean (Make sure you completely clean your monitor before paste the filter, use the steak and spray bottle with the screen protector.) 2. After cleaning the clean screen, tear off the inner layer mounting protective film (There are additional two-layer transparent film protection in the middle of the television protective film. Please remember to remove the inner layer first, wait until the TV film is completely attached to the screen, remove the outer layer.) Service: If you have any questions, you can contact us. We will answer your questions within 24 hours. We will provide professional and friendly service.