Art to Frames Double-Multimat-228-41/89-FRBW26061 Collage Frame Photo Mat Double Mat with 12-4x6 Openings and Espresso frame High quality 4-ply double mats; Lignin Free, pH-neutral; Bevel Cut Edges Comes with Espresso frame Dimensions: 23" x 24" with 12 - 4x6 openings Top Mat Color: Charcoal; Bottom Mat Color: Black Comes with Espresso frame, Plexi glass, backing and hooks for wall