Mat Board Center, Pack of 20, WHITE COLORS 8x10 Picture Mats Matting with White Core Bevel Cut for 5x7 Pictures Pack of 20 8x10 White color Picture Mats with White Core Bevel Cut for 5x7 Pictures This item comes with 20 8x10 single mats. Inside (opening) Size: 4.5x6.5 (bevel cut), Color:WHITE . White core and 4-ply thick (about 1.4 mm or 1/16 inch). Perfect for framing 5x7 photos in an 8x10 picture frame. THIS ITEM DOESN'T INCLUDE BACKING BOARD AND CLEAR BAG.