Nitro Glass is a premium tempered glass screen protector that’s hammer tested! This uniquely strong protector is made of highly engineered tempered glass that can handle anything you throw at it. Since its glass, it doesn’t have any of the distortion or finger drag that is possible with other plastic based protectors. You can confidently expect the highest quality from all zNitro products. Nitro Glass is clear tempered glass and is virtually invisible on your screen. Designed with customers in mind therefore, it’s easy to install. Nitro Glass offers supreme protection for your screen.