Featuresr high hardness raw material is imported high quality material hardness up to 9 hr anti shatter special steel processing to prevent the glass sticker break up make sure it39s securityr 25 d arc process 25 d arc edge technology on edge feel smooth and durability has been greatly enhancedr high light transmittance optical transmittance low reflection appearing high light transmittance over 98r anti oil liquid is not easy to cleave easy to wipe cleanr fingerprint