ArtToFrames Collage Photo Frame Double Mat with 4 - 8x10 Openings and Satin Black Frame Comes with Satin Black frame, Plexi Glass, 2 mats, backing and a wire hanging set (hardware as shown in the photos). Finished Frame Dimensions: 41" x 16" (Total frame size when hanging on the wall). Top Mat Color: Porcelain. Bottom Mat Color: Black Comes with 4 - 8x10 openings. (Each opening cut roughly 1/4" smaller then the size listed so it holds in your photos nicely) High quality 4-ply double mats ... Lignin Free, pH-neutral. Bevel Cut Edges.