PThink 2.5D Round Edge 0.3mm Ultra-thin Tempered Glass Screen Protector for Sony Xperia M4 with 9H Hardness/Anti-scratch/Shatterproof/Fingerprint resistant (Sony Xperia M4) Perfect Anti-scratch: 9H greatly intensified surface hardness which is 3 times stronger than regular PET film. Ultra-thin design, specially made with scratch resistant material and rounded edges for a more precise fit. Tempered glass film provides super smooth touching as well as no lose in touch screen sensitivity. When facing heavy impact or broken, this nano glass cracks into small pieces that are held within the film with safety and no pointed edges exposed. Notice a cutout on the left side of this screen protector, which is for the proximity sensor on the left side of your phone, not to mistake that it was for the front camera of your phone and thought it was a wrong-sided cutout. The camera does not need a cutout, since the light transmittance can not be affected by the glass film, and the glass film covers as a dust shield for the camera.