Note: due to the large curve of the tempered glass, and it uses frame adhesion model in product design, so for installation, please note: 1. Thoroughly clean the surface of mobile phone screen, especially the edges. 2. Precise one-time installation is the best, and tightly presses the edges are required. If you can not well install it in one-time, and repeatedly install and remove, it will cause damage and greatly reduce the service life of the tempered glass.