This ingenious device will cure most smoking problems resulting from a flue sized too small for the fireplace opening. The smoke guard can be used to reduce the height or width of the fireplace, making the ratio of the fireplace opening to flue size more compatible. Installs easily without tools. It is available in black and brass and can be any easy, inexpensive solution for smoking fireplace problems. Fits fireplaces from 28" to 48" in width.