8x10 Photo/Picture Frame with Mat for 5x7 (12 pcs/box) Black 8 x 10 Photo/Picture Frame with Mat for 5x7 (12 pcs/box) Black This picture frame comes with single mat for 5x7 pictures The opening size fits 5x7", or 8x10(without mat). The mats are beveled cut with white core and 4-ply thick (about 1.4 mm or 1/16 inch). 1'' wide and 5/8'' thick molding