9H hardness for maximum protection,Avoid unwanted scuffs and scratches by knife, keys and some other hard substances. By undergoing more than 4.5 hours of high temperature temper treatment, this screen protector's compression strength reach as high as 125MPa, 5 times higher than regular glass Laser-cut dimensions provide maximum protection for the screen of your device,perfect cut and fit for your screen The 2.5D round edge provides more comfortable handle feeling than the right angle edge, and will never hurt your fingers.