This great premium quality screen protector is made of laboratory treated tempered glass with the hardness of 9H. Therefore it offers good resistance to sharp and hard object. Once applied on the phone screen, it absorbs all the damages or impact done on the screen. Sharp objects like knives and keys will not easily scratch the glass. Heavy impact such as direct strike by a hammer will not break the glass. However if sufficient force is being applied or the glass is being hit at the edges or blind spot, the glass will still break. It also offers good resistance to fingerprint and stain arising from daily use of the phone. A simple wipe by using a cloth will clean the surface easily.