Mat Board Center, Pack of 25 Set 11x14 MIXED COLORS White Core Picture Mats for 8x10 Photo + Backing + Bags High Quality Set of 25 sets of 11x14 White Core Picture Mats for 8x10 Photos with backing boards and bags This item comes with the 25 pre-cut mats, 25 backing boards and 25 clear bags. The mat opening size is 7.5"x9.5" for 8x10 print. Color: Mixed color (Colors will vary on each order) The re-sealable adhesive strip of the clear bag is below the opening of the bag instead of on the flap. The mats are beveled cut with white core and 4-ply thick (about 1.4 mm or 1/16 inch), The backing is white on both side.