This is NOT tempered glassif there is any bubble or line left after apply the protector, please don't be anxious, it will disappear in a week, this protector has the function of auto repair. If it can't disappear in a week, please contact us via email, we will give you a satisfied solution. Your support will be highly appreciated, thank you for your cooperation. iPhone XR iPhone 11 HYDROGEL AQUA FLEXIBLE Crystal Screen Protectorhow to apply iPhone XR iPhone 11 Screen Protector:https://youtu.be/jLwYTB22cdAItem DescriptionHigh Quality iPhone XR iPhone 11 Screen ProtectorCreated from scratch-proof, military-grade, yellow-resistant materialUltra HD Clear and amazingly thinPre-Cut out design for sensors & camera. Will not affect any functions of your iPhone XR iPhone 11Flexible Material Adheres Perfectly to Screen's SurfaceProviding Reliable Full-Screen Coverage Even on Curved GlassCase FriendlyRemovable without Leaving Residuary MarkCompatible with- iPhone XR iPhone 11Item included- iPhone XR iPhone 11 Screen Protector- Cleaning wipes- scrape boardNote: Mobile Phone is Not Included