The Helmet Diamond Glass 4D is a protective screen cover designed specifically for the Xiaomi Mi 9. Made from tempered glass, it features a 4D full-coverage design that extends to the curved edges of the display, ensuring the entire front surface is shielded from daily wear. This black-bordered protector is built to be scratch and shock resistant, which helps keep your screen intact during accidental drops or contact with sharp objects in your bag. To maintain a clean viewing experience, the glass includes an oleophobic coating that resists fingerprints and grease while preserving the original clarity and color accuracy of the display. It comes as a complete set with a cleaning kit and instructions, making it straightforward to apply without bubbles. This accessory is ideal for anyone wanting to preserve their phone's screen condition without compromising touch sensitivity or visual quality.