A screen protector is a thin layer of material designed to cover and protect the display of electronic devices like smartphones, tablets, and laptops. Made from materials such as tempered glass or plastic, screen protectors help prevent scratches, cracks, and other damage that can occur from everyday use. They can also reduce glare and improve touch sensitivity. Installing a screen protector is usually a simple process that involves cleaning the device's screen and carefully applying the protector to avoid air bubbles. Many users choose to use screen protectors to extend the lifespan of their devices and maintain their resale value, making them a popular accessory for smartphones and tablets.