Its simple and modern design, this 27 In x 27 In stainless steel fireback not only accents the beauty of your fireplace, but makes it more efficient in heating the house. The fireplace firebacks absorb the heat and then radiate the heat directly into the room. Constructed of 14-ga., 304-alloy stainless steel, this Radiant Fireback weighs about one sixth the weight of a cast-iron fireback. Its lightweight, and easy to install. Each fireback features a gentle curve applied to its back to pre-stresses it and minimize warping. These fireplace firebacks have slotted support legs that allow you to adjust it to three angles: 65, 75 and 90 degrees. The legs are 1" high, 2 3/8" wide and 9" long.