Frame is type 304 stainless steel, satin finish. Beveled edges of frame hug mirror; provides gapless fit for improved appearance, and safety when cleaning mirror. No. 1 quality, 1⁄4" (6mm) glass mirror; warranted against silver spoilage for 15 years. Mirror extends 4" (100mm) from wall at top and tapers to 1" (25mm) at bottom.