Compatible with the Huawei P30 Pro and all phones or tablets up to 17" Liquid screen protector goes on easily with no bubbles, peeling, or cracking and lasts up to one year Increases the screen's hardness to 9H--the equivalent of sapphire--to prevent scratches and chipping Features anti-radiation and anti-bacterial properties to protect you from harmful microbes Limited warranty from Crystaltech will provide $250 toward the repair or replacement of the screen if it is damaged