For Nokia 7 0.3mm 9H Surface Hardness 2.5D Explosion-proof Full Screen Tempered Glass Film(Black) Descriptions 1. Ultra-thin and excellent flexibility. You do not need to worry whether the reflexes of your device would slow down after pasting the film at all. 2. High hardness. This tempered glass screen film has a high hardness up to 9H hardness. 3. High definition. The film has a high light transmission. With high light transmission and low light reflection, the film can provide you with a high definition screen just as usual. 4. Functional. The protector can fit your device well and make a big difference on protecting your device from scratch, fingerprint, oil, dust and so on.When stained with fingerprint, mud, oil or other attachments, it can be cleaned without effort. 5. Convenient for use. To paste the film, the only thing you need to do is to clean up the screen thoroughly. 6. Durable. With good performance and high quality titanium alloy and tempered glass material , it may work for a long time. Cautions 1. As this is a glass product, please note that the edges of the glass are the most vulnerable areas. 2. It is not recommended to reuse the glass protector once it's been applied. 3. Using excessive force who installing or removing the screen protector may damage the product.