C.Skins 6 - Pack Premium Clear Screen Protector for Nokia Lumia 521 C.Skins Transparent Screen Protector Ensuring HD Screen Clarity PET Hard Film that Protects With a Glass Like Glide Ultra Strong to Protect the Display from Scratches, Dings and Possible Screen Damage Custom Engineered to Exactly fit the Nokia Lumia 521 C.Skins Lifetime Warranty