ZAGG InvisibleShield Glass Screen Protection for Samsung Galaxy S5 Sport Protective: Made of fortified tempered glass, it delivers unprecedented scratch protection. Crystal Clear: High-grade tempered glass provides ultimate clarity Sensitive: At only 0.4mm thin, Glass offers ultimate touchscreen sensitivity. Ultra-Smooth: Its highly polished surface and tapered edges feel great and prevent snags when sliding devices in and out of pockets. Guaranteed: invisible Shield Glass is so good, it comes with a lifetime guarantee.