SHEETROCK Paper Faced Metal Bead and Trim combines the best of both paper and metal materials to give you straight, problem-free, crack-free corners backed by a lifetime warranty. The strong paper tape provides excellent adhesion of joint compounds, textures, and paints for a strong, smooth finish. It also has a patented green "nose coating" that resists scuffing during installation. The corrosion resistant metal provides excellent impact resistance. As a result, SHEETROCK Paper Faced Metal Bead and Trim is fast and easy to install using CGC joint compound without any additional tools and /or fasteners.