The strongest screen protector . Offering the highest level of impact resistance, it is bound to be the ultimate protection for your phone screen and the one you ever want. 0.3mm thinness: At only 0.3mm thin, users will have the high clarity and sensitivity from their phone screen Impact Resistance: tested with 250g steel ball dropped from height of 2M, this screen protector survived the ultimate test of impact strength. It will protest users’ phone screen like no other. Anti-dust filter: With an anti-dust filter, it keeps the hearing/speaker grill clear of dust, keeping the sound clarity for calls and stereo videos