The PA Extra Thick Gallery framing mats let you turn your photos and artwork into dramatic and exciting home decor pieces that can be hung on your walls, displayed on an easel, or even decoratively framed. With a white outer surface with white core bevel edges, this framing mat creates a classy and elegant look while highlighting any display or artwork. It features an extra thick single layer mat with bevel inside edges in a 10" x 20" measurement with 3 equidistant openings having 4" x 6" dimensions each. The surface and structure are made to be acid-free but are designed for non-conservation framing. Made in the USA.