This is a heavy, solid cast brass floor register from Brass Elegans. The attractive Modern register features a Polished brass finish and is designed to fit a 4"X12" opening in the floor. The cast brass is significantly heavier than stamped brass or steel registers and will not bend, warp or tarnish. The Register features a screwed on steel adjustable damper that can be removed if you want to clean or repaint the powdercoated damper.