ROIEX Premium Quality Tempered Glass By Wokit Ensures Better Mobility Experience. This means it provides exceptional protection against scratches and scrapes. Special uv coating prevents sun damage and resists oil and stains. In order to provide the best possible protection for your phone while also ensuring a long-lasting film, karpine proguard hd have coated their screen protector with a special uv-resistant chemical. This prevents the sun from damaging or aging the screen protector, while also helping resist fingerprints, oil and staining.