HINGE MASKING MADE EASY with the Hinge Mag Magnetic Door Hinge Covers. Quickly and easily paint doors and trim without having to remove the door!. Hinge Mags install quickly and stay in place magnetically - no mess, easy cleanup, removal, and re-usable. The 4.5inch hinge is generally found in commercial construction, and can be masked with minimal effort with the Hinge Mag. Perfect for hospitals, schools, office buildings, renovations, facilities management, and anyone that needs to paint commercial doors.