Custom 12x16" Diploma Frame - Framed in Black with 4-ply, pH Neutral Double Black and Gold Mats, Comes with Regular Acrylic and Wire Hanger for Wall Hanging. Comes with Regular Acrylic, black and gold mats, foam backing and easy-to-hang hardware (as pictured above). The Single Opening is cut roughly 1/4" smaller than the size listed to keep your diploma or picture in place. Actual frame size (finished size) is 22x18". Actual glass size (inside size) is 20 x 16". The mats are high quality 4-ply double mats, which are lignin free, pH-neutral and have bevel cut edges. Top mat color: black. Bottom mat color: gold. This frame is 1.25" wide and 0.7500" high. It has a 0.25" lip (the part that covers the mats) and a 0.4375" rabbet (space between the lip and back of the frame).