Sturdy & Clean-Lined 1/3" Contemporary Aluminum Square Border Helps Your Artwork Appear as Striking & Crisp. Standing Exactly 1" Off the Wall. Brushed Satin Metal Finish Adds a Soft Sheen to the Surface for a Modern, Sophisticated Look while Providing Smudge & Fingerprint Resistance. Fit 18x24 Photo or 12x18 Picture when Use with the Acid-Free Museum Mat in Ivory White. Mat Opening is Bevel Cut for a Professional Appearance. 2mm TEMPERED GLASS Glazing with High-Clarity, Minimum Distortion and Splinter-Proof Property Helps Prevent Cut & Scrape when Shatter. Our Exclusive Sawtooth Hanging Merchanism Ensures A Quick & Precise Installation for both Vertial & Horizontal Wall Hanging.