SKINS by Liquipel is the most advanced shock absorbing screen protector for your device. Our multi-layered protection system with Nano-Shock; technology dissipates impact to save your screen and prevent costly repairs. SKINS by Liquipel also feature a smooth, glass-like feel and crystal clear HD clarity all of which are backed by our lifetime warranty. Lifetime warranty ensures that if you ever do have a problem, well exchange it for you so your phone can stay protected. Compatible with Samsung galaxy s4. Manufacturers lifetime guarantee.