Package of 10 pre-cut mats with white core bevel cut * These are Acid Free matboards, Standard 4 ply: 1.4 mil or 1/16 inch * Perfect for framing 8x10 photos in an 11x14 picture frame. * Outside Dimensions: 11x14" * Inside Dimensions: 7.5x9.5" bevel cut (to fit 8x10 photo)