[Anti Blue Light Test ] If you use a blue light flashlight on a white cardboard with a protective film, the blue light will appear less bright due to the ultra-thin protective film blocking out 99.3% of harmful blue light. This is beneficial for individuals who spend a lot of time reading because it helps prevent eye strain. | [ HD Display & Quick Touch Response ]This screen protector is only 0.33mm thick and has a 95% transparency rate, so you can keep the original screen brightness and viewing experience while using the screen protector. It also provides a natural touch response. | [Kind Reminder] Only fit for the Kindle Oasis (10th and 9th Generation, 2019 and 2017 Release),Please make sure to verify the accurate device model before buying, as there have been incidents of mistaken purchases for the Amazon Kindle Oasis (8th Generation 2016) which have resulted in the film not matching the screen. | [Anti Glare ] It's matte anti-glare materials are intended to decrease glare and improve visibility when in environments with good lighting. This results in a smooth, textured appearance that improves the device's attractiveness. | [ Anti Scratch & Anti-Fingerprint ] This screen protector is designed to keep fingerprints and smudges from accumulating, making it easy to clean off any marks. It also effectively protects your children's kindle screen from scratches and other damage.