This metal-secured corner trim tape for gypsum board is equipped with a metal layer, which can strengthen the corners and prevent damage during construction and repair processes. The entire roll is 150 ft. long, providing sufficient material to handle multiple projects, and is suitable for the precise installation of the inner corners of gypsum boards. It has a smooth and hollow surface, enhancing the adhesion, and is easy to install and operate efficiently. It can reinforce the strength of the corner, can bond tightly with various building materials such as gypsum boards and cement, effectively preventing cracking of the wall and corner, prolonging the lifespan of the wall surface, and maintaining its beauty for a long time. After installation, the lines are neat and clean, presenting a professional and seamless decoration effect. Material: Galvanized Steel.