TechFilm for Nokia Lumia 521 Tempered Glass Screen Protector Made from the Highest Quality Tempered-Glass with 100% Bubble-Free Adhesives for easy installation. 9H Super Tough protects From scratches to high impact drops. 99.9% High-definition clear hydrophobic and oleophobic screen coating protects against sweat and oil residue from fingerprints. Protect your screen from scratches, dust and daily wear and tear. Each TechFilm Screen Protector is accurately designed to perfectly align and fit your Device Screen