Approximate outer dimensions are 21 x 21 inches, but will vary based on your diploma size and orientation. Image is for illustration only. Double matted with conservation grade Crescent carbon black UltraSuede mat over Crescent gold mat. Both mats are acid and lignin free to ensure preservation of your document. A recessed, bevel-cut opening in the mat displays the embossed school name in gold. Exceeds U.S. Library of Congress standards for document preservation. Environmentally conscious construction and packaging. Your purchase helps support the Global ReLeaf Forest Foundation. Acid-free fasteners are included with every frame along with simple instructions for inserting your diploma. No tools are required. Hand made in Austin, Texas by experienced custom picture framers. Shatter resistant Acrylite acrylic is safer and lighter than glass.