kwmobile® Tempered Glass Screen Protector Apple iPhone 4 / 4S and MAT ANTI-GLARE with anti-fingerprint effect. High Quality (Wireless Phone Accessory) 1
received an envelope with a broken angles not preventing the installation except that when removing the protective film from the adhesive side, protection is split into two starting from the broken angle.
So I could not test its effectiveness but for finding an unbreakable protection I ask questions