The Stainless Radiant Fireback protects the back wall of the fireplace and reflects heat to the room. Constructed of 14-gauge, 304-alloy stainless steel, the Radiant Fireback weighs in at about one sixth the weight of a cast-iron fireback. It's easier to handle and less expensive to ship. Each fireback has a gentle curve applied to its back. This pre-stresses the fireback to minimize warping. Slotted support legs allow you to adjust it to three angles: 65, 70, and 90 degrees. The legs are 1" H x 2 3/8" W x 9"L.