2 pieces, armored glass Compatible with Huawei Mate 20 Pro (6.39 inches) and the tempered glass protective film can make your device as flexible as your original display. The first installation step: let the adhesives fall in the center of the screen and place the screen protector on top. Then the liquid is automatically distributed over the entire screen. You can freely adjust the position of the screen and the protective film during this process. Make sure the liquid covers the entire screen. The second installation step: dry the screen back and forth bit by bit with the help of the illuminated screen. This process takes 2-5 minutes. Finally, clean the liquid off the screen. Transparency and high sensitivity, as well as perfect adhesion, preserves the original display quality and maintains the original touch feeling. Bubble Free Installation:Easy to install with no air bubbles and no residue during removals.