Surface Book Screen Protector [Tempered Glass], ESR Ultra Clear High Definition Tempered Glass Screen Protector for Surface Book Specially designed for Surface Book The shatterproof technology allows the screen to have some slight flexibility in case of a hard blow. This slight flexing protects your screen so if it is dropped it will not shatter Scratch-resistant (9H) screen protector can effectively protect your surface book from unwanted scuffs and scratches. Protected by ESR No-Hassle Lifetime Replacement Warranty. A nano-coating repels natural olds that occur on your skin. Oils and fingerprints come off easily with a simple swipe so your screen will always look clean. Bubble Free Easy Installation, for details please refer to instruction attached in the package.