Bencuku Glass Screen Protector Description [ANTI-SHATTER] By undergoing specialized tempered-glass treatment, this screen protector is much more flexible and shatterproof. If the protector does break under extreme pressure, it won't break into small, sharp pieces, keeping your phone and yourself out of danger. [WATERPROOF AND OIL-PROOF] High-density anti-fingerprint layer, can prevent the water & oil from scatter and the water & oil can be wiped away very easily. [9H HARDNESS FOR MAXIMUM PROTECTION] 9H hardness tempered glass, which is 3 times stronger than normal 3H hardness, can effectively protect your iphone from unwanted scratches and friction from keys, knife and other harmful factors. [CLARITY AND HIGH-RESPONSE TOUCH PRESERVED] 99.99% HD clarity, color reproduction, HD clear display, natural watching experience, maintains the original touch experience. How can I avoid dust spots? Before placing the screen protector, please follow the instructions in the package to clean the screen. Please make sure there is no more dirt or dust on the screen before applying the screen protector. Also, please try to find a humid place with less dust to install the screen protector.