With an easy friction fit, SmartGuard® residential plastic nail on box covers install at rough-in. These covers are the most convenient and economical way to keep mud products, textures, and paint off your wiring and out of those electrical boxes. Inspections can occur with box covers in place. Simply remove the cover at the trim stage and you are ready to finish, leaving the wiring and boxes looking brand new. Why spend extra time replacing cut wiring or cleaning out a dirty box?