The Helmet Diamond Glass 4D is a tempered glass screen protector designed specifically for the Samsung Galaxy S21 FE. Its 4D design ensures full coverage that extends to the curved edges of the display, while the full glue adhesive layer covers the entire surface to maintain high touch sensitivity and a uniform fit without air bubbles. This black-bordered protector shields your front screen from scratches, shocks, and dust without compromising the visual experience. Because of its high clarity, the original image quality and colors of your device remain vivid and unchanged, making it a practical choice for anyone wanting to keep their phone's display pristine during daily use.