Every iShieldz protection system provides the right balance of durability, clarity, and thinness. All you do is lightly spray your shield with an enclosed spray, apply to a clean screen, press down, and allow to dry for 30 seconds. Once applied, iShieldz makes your screen smudge proof and easy to grip, improving your already ultra-cool device. Built to last forever, every screen also comes with a lifetime replacement guarantee—what more convincing do you need?