Sony experia z4 tempered screen glass 4 times the strength of your regular glass, a very strong extra protection for your mobile phone screen. Anti-shatter and with HD crystal you have no interference with display clarity. 9H hard enough to resist scratches. Light transmission rate of up to 99%. Easy to apply, protect your sony xperia z4 phone screen from scratches and cracks with sony xperia z4 tempered screen glass.