Art to Frames Double-Multimat-227-89/89-FRBW26061 Collage Frame Photo Mat Double Mat with 12-3.5x5 Openings and Espresso frame High quality 4-ply double mats; Lignin Free, pH-neutral; Bevel Cut Edges Comes with Espresso frame Dimensions: 21" x 21" with 12 - 3.5x5 openings Top Mat Color: Black; Bottom Mat Color: Black Comes with Espresso frame, Plexi glass, backing and hooks for wall