Mat Board Center is a national wholesale supplier of high quality paper mat boards. We are committed to combining aggressive strategic marketing with quality products and services at competitive prices to provide the best value for artists, photographers, designers, and art related businesses. Pack of 10 Acid-free Precut Rock Garden Color Mats 8x10 Mats Pre-cut for 5x7-inch pictures, photos, artworks Mat Opening Size: 4.5" x 6.5" White Core, 4-ply (1/16in - 1.4mm), Bevel Cut, Acid Free Mats Perfect for framing all your photographs or prints The Mats can be used as a part of a frame for fancy display.