ZAGG Invisible Shield Vision Guard for Healthy Eyes. Block harmful high-energy visible (HEV) blue light and 99% of UV light from your device screen with a protective Eye Safe layer. Powerful. Proprietary Ion Matrix technology strengthens at the molecular level and preserves the glass-like feel of your screen protection. A precision surface finishing process provides maximum scratch resistance. A long-lasting, oil-resistant finish prevents fingerprints from accumulating and helps keep your screen looking pristine. The premium composition of this smooth tempered glass has remarkable touch sensitivity and 100% clarity. The reinforced, beveled edges of Glass plus make it seem to disappear into your screen. EZ Apply tabs make applying your Glass plus simple and accurate.