Art to Frames Double-Multimat-458-791/89-FRBW26061 Collage Frame Photo Mat Double Mat with 16-4x4 Openings and Espresso frame High quality 4-ply double mats; Lignin Free, pH-neutral; Bevel Cut Edges Comes with Espresso frame Dimensions: 23" x 23" with 16 - 4x4 openings Top Mat Color: Oyster; Bottom Mat Color: Black Comes with Espresso frame, Plexi glass, backing and hooks for wall