For RedMagic Astra 2 Tempered Glass Screen Protector On RedMagic Astra 2.5D HD Film 9H Scratch Proof Oil-Coating 2-Pieces

A few ways exist to enable a user to find a device's serial number:In the device's system settings:Settings->System->About Tablet->Model->Serial number.On the device's retail packaging. The device's serial number can be found on the back of the box.On the device's back cover. The device's serial number can be found on a label located on the back of the device.Tip: You must choose the corresponding tablet, and we will send the screen protector according to this choice.Features:1. 2.5D2. High Transparency99% transparency to keep natural beauty of your phone.3. Ultra SilmThickness of 0.33mm, smooth surface to be sensitive response with screen touching.4. HardnessToughened glass film with oleophobic coating to reduce fingerprints,anti-scratch,anti-scrape.5. Easy applicationInstallation wipes and cleaning kits included,align the film to screen then easy to apply.Package include:2x Tempered glass2x Cleaning cloth2x Installation wipes2x Dust removal stickerAbout Model: each model is unique, only choose the model that corresponds to you. If you don't find it, then you can contact the seller.About The Screen Protector Size: Approximately covering 99% of the screen, NOT 100%.  The best choice for compatible tablet case. It is also easier to install.How do I install screen protector?It is better to be in a room without dust before installation.-- compare the suitable position of screen protector and tablet screen first.-- use No. 1 paper towel to clean the screen-- use No. 2 paper towel to dry the screen.-- tear off and discard the safety film of screen protector, calibrate the position of screen protector and tablet screen and slowly put it down.