ZAGG - InvisibleShield Glass Plus VisionGuard Glass Screen Protector Block harmful high-energy visible HEV blue light and 99 of UV light from a device screen with a protective EyeSafe layer. Powerful. Proprietary Ion Matrix technology strengthens at the molecular level and preserves the glass-like feel of screen protection. A precision surface finishing process provides maximum scratch resistance. A long-lasting oil-resistant finish prevents fingerprints from accumulating and helps keep a screen looking pristine. The premium composition of this smooth tempered glass has remarkable touch sensitivity and 100 clarity. Product Features Block harmful high-energy visible HEV blue light and 99 of UV light from a device screen with a protective EyeSafe layer. Proprietary Ion Matrix technology strengthens at the molecular level and preserves the glass-like feel of screen protection. A long-lasting oil-resistant finish prevents fingerprints from accumulating and helps keep a screen looking pristine. The premium composition of this smooth tempered glass has remarkable touch sensitivity and 100 clarity.