Microsoft Surface Book Screen Protector [1-Pack], iLLumiShield HD Clear Tempered Ballistic Glass Screen Protector for Microsoft Surface Book 9H Hardness Anti-Bubble Shield - Lifetime Warranty All iLLumiShield HD Tempered Glass Microsoft Surface Book screen protectors are backed by a Lifetime Replacement Warranty. Not only do iLLumiShield ballistic glass protectors provide premium protection, but combine that with our Lifetime Guarantee and have a lifetime of peace of mind Exclusively made and engineered tempered glass screen protector for Microsoft Surface Book is designed to resist and absorb shock unlike traditional PET and TPU protective screen covers. Clear Tech protective coat contains oleophobic properties that repel fingerprints and grime. 99.9% transparent high definition tempered glass cover helps enhance sharpness and detail, drastically improving user experience. 9H Hardness +.33 mm ultra-thin thickness adds unparalleled screen protection without adding unnecessary bulk. "Glide Touch" precision tech keeps screen fully responsive. Pure Placement Easy-Installation method allows for a frustration-free and anti-bubble installation.