Glass screen protectors are commonly used to protect smartphones and other mobile devices from damage caused by sharp objects or impacts. They are made from a type of glass calledtempered glass and are typically installed using a scraping method. There are over 2 models of glass screen protectors available for Vaio brand cell phone models, providing high strength and ease of installation. These screen protectors are the best way to protect your Vaio cell phones from damage. Provide glass screen protectors for models such as Vaio Phone Biz,Vaio Phone A.