Our Sealed Tailgate Hinges are affixed to both the rear post of the sealed style roll-off container and the tailgate allowing the swinging motion to open and close. Manufactured for sealed containers, they are connected to a hinge system with a ratchet binder that will ensure the sealed tailgate is pulled tight to the container. The plate welded to the container measures 2 2/3″ x 15 3/8″. The plate welded to the tailgate measurees 3 11/16″ x 6 7/8″. They come complete with grease zerks.