Pre-taped, un-taped or pre-drilled corner guard wings are easy installation on existing walls and corners. They ideally suited corner guards for hotels and motels or corner guards for offices or corner guards for schools.
Wallguard.com offers a wide variety of styles and materials will meet virtually any requirement.
Tape works well over painted drywall - not recommended for use over wallpaper/wallcoverings.
Drilled to install over wallpaper or in any place you might need to remove them for any reason
Un-taped/un-drilled should be installed with standard construction adhesive.